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consul/agent/structs/intention_test.go

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package structs
import (
"sort"
"strings"
"testing"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
"github.com/hashicorp/consul/acl"
)
func TestIntention_ACLs(t *testing.T) {
type testCase struct {
intention Intention
rules string
read bool
write bool
}
cases := map[string]testCase{
"all-denied": {
intention: Intention{
SourceNS: "default",
SourceName: "web",
DestinationNS: "default",
DestinationName: "api",
},
read: false,
write: false,
},
"deny-write-read-dest": {
rules: `service "api" { policy = "deny" intentions = "read" }`,
intention: Intention{
SourceNS: "default",
SourceName: "web",
DestinationNS: "default",
DestinationName: "api",
},
read: true,
write: false,
},
"deny-write-read-source": {
rules: `service "web" { policy = "deny" intentions = "read" }`,
intention: Intention{
SourceNS: "default",
SourceName: "web",
DestinationNS: "default",
DestinationName: "api",
},
read: true,
write: false,
},
"allow-write-with-dest-write": {
rules: `service "api" { policy = "deny" intentions = "write" }`,
intention: Intention{
SourceNS: "default",
SourceName: "web",
DestinationNS: "default",
DestinationName: "api",
},
read: true,
write: true,
},
"deny-write-with-source-write": {
rules: `service "web" { policy = "deny" intentions = "write" }`,
intention: Intention{
SourceNS: "default",
SourceName: "web",
DestinationNS: "default",
DestinationName: "api",
},
read: true,
write: false,
},
"deny-wildcard-write-allow-read": {
rules: `service "*" { policy = "deny" intentions = "write" }`,
intention: Intention{
SourceNS: "default",
SourceName: "*",
DestinationNS: "default",
DestinationName: "*",
},
// technically having been granted read/write on any intention will allow
// read access for this rule
read: true,
write: false,
},
"allow-wildcard-write": {
rules: `service_prefix "" { policy = "deny" intentions = "write" }`,
intention: Intention{
SourceNS: "default",
SourceName: "*",
DestinationNS: "default",
DestinationName: "*",
},
read: true,
write: true,
},
"allow-wildcard-read": {
rules: `service "foo" { policy = "deny" intentions = "read" }`,
intention: Intention{
SourceNS: "default",
SourceName: "*",
DestinationNS: "default",
DestinationName: "*",
},
read: true,
write: false,
},
}
config := acl.Config{
WildcardName: WildcardSpecifier,
}
for name, tcase := range cases {
t.Run(name, func(t *testing.T) {
authz, err := acl.NewAuthorizerFromRules(tcase.rules, &config, nil)
require.NoError(t, err)
require.Equal(t, tcase.read, tcase.intention.CanRead(authz))
require.Equal(t, tcase.write, tcase.intention.CanWrite(authz))
})
}
}
func TestIntentionValidate(t *testing.T) {
cases := []struct {
Name string
Modify func(*Intention)
Err string
}{
{
"long description",
func(x *Intention) {
x.Description = strings.Repeat("x", metaValueMaxLength+1)
},
"description exceeds",
},
{
"no action set",
func(x *Intention) { x.Action = "" },
"action must be set",
},
{
"no SourceNS",
func(x *Intention) { x.SourceNS = "" },
"SourceNS must be set",
},
{
"no SourceName",
func(x *Intention) { x.SourceName = "" },
"SourceName must be set",
},
{
"no DestinationNS",
func(x *Intention) { x.DestinationNS = "" },
"DestinationNS must be set",
},
{
"no DestinationName",
func(x *Intention) { x.DestinationName = "" },
"DestinationName must be set",
},
{
"SourceNS partial wildcard",
func(x *Intention) { x.SourceNS = "foo*" },
"partial value",
},
{
"SourceName partial wildcard",
func(x *Intention) { x.SourceName = "foo*" },
"partial value",
},
{
"SourceName exact following wildcard",
func(x *Intention) {
x.SourceNS = "*"
x.SourceName = "foo"
},
"follow wildcard",
},
{
"DestinationNS partial wildcard",
func(x *Intention) { x.DestinationNS = "foo*" },
"partial value",
},
{
"DestinationName partial wildcard",
func(x *Intention) { x.DestinationName = "foo*" },
"partial value",
},
{
"DestinationName exact following wildcard",
func(x *Intention) {
x.DestinationNS = "*"
x.DestinationName = "foo"
},
"follow wildcard",
},
{
"SourceType is not set",
func(x *Intention) { x.SourceType = "" },
"SourceType must",
},
{
"SourceType is other",
func(x *Intention) { x.SourceType = IntentionSourceType("other") },
"SourceType must",
},
}
for _, tc := range cases {
t.Run(tc.Name, func(t *testing.T) {
ixn := TestIntention(t)
tc.Modify(ixn)
err := ixn.Validate()
assert.Equal(t, err != nil, tc.Err != "", err)
if err == nil {
return
}
assert.Contains(t, strings.ToLower(err.Error()), strings.ToLower(tc.Err))
})
}
}
func TestIntentionPrecedenceSorter(t *testing.T) {
type fields struct {
SrcPeer string
SrcNS string
SrcN string
DstNS string
DstN string
}
cases := []struct {
Name string
Input []fields
Expected []fields
}{
{
"exhaustive list",
[]fields{
// Peer fields
{SrcPeer: "peer", SrcNS: "*", SrcN: "*", DstNS: "exact", DstN: "*"},
{SrcPeer: "peer", SrcNS: "*", SrcN: "*", DstNS: "*", DstN: "*"},
{SrcPeer: "peer", SrcNS: "exact", SrcN: "*", DstNS: "exact", DstN: "exact"},
{SrcPeer: "peer", SrcNS: "*", SrcN: "*", DstNS: "exact", DstN: "exact"},
{SrcPeer: "peer", SrcNS: "exact", SrcN: "exact", DstNS: "*", DstN: "*"},
{SrcPeer: "peer", SrcNS: "exact", SrcN: "exact", DstNS: "exact", DstN: "exact"},
{SrcPeer: "peer", SrcNS: "exact", SrcN: "exact", DstNS: "exact", DstN: "*"},
{SrcPeer: "peer", SrcNS: "exact", SrcN: "*", DstNS: "exact", DstN: "*"},
{SrcPeer: "peer", SrcNS: "exact", SrcN: "*", DstNS: "*", DstN: "*"},
{SrcNS: "*", SrcN: "*", DstNS: "exact", DstN: "*"},
{SrcNS: "*", SrcN: "*", DstNS: "*", DstN: "*"},
{SrcNS: "exact", SrcN: "*", DstNS: "exact", DstN: "exact"},
{SrcNS: "*", SrcN: "*", DstNS: "exact", DstN: "exact"},
{SrcNS: "exact", SrcN: "exact", DstNS: "*", DstN: "*"},
{SrcNS: "exact", SrcN: "exact", DstNS: "exact", DstN: "exact"},
{SrcNS: "exact", SrcN: "exact", DstNS: "exact", DstN: "*"},
{SrcNS: "exact", SrcN: "*", DstNS: "exact", DstN: "*"},
{SrcNS: "exact", SrcN: "*", DstNS: "*", DstN: "*"},
},
[]fields{
{SrcPeer: "", SrcNS: "exact", SrcN: "exact", DstNS: "exact", DstN: "exact"},
{SrcPeer: "peer", SrcNS: "exact", SrcN: "exact", DstNS: "exact", DstN: "exact"},
{SrcPeer: "", SrcNS: "exact", SrcN: "*", DstNS: "exact", DstN: "exact"},
{SrcPeer: "peer", SrcNS: "exact", SrcN: "*", DstNS: "exact", DstN: "exact"},
{SrcPeer: "", SrcNS: "*", SrcN: "*", DstNS: "exact", DstN: "exact"},
{SrcPeer: "peer", SrcNS: "*", SrcN: "*", DstNS: "exact", DstN: "exact"},
{SrcPeer: "", SrcNS: "exact", SrcN: "exact", DstNS: "exact", DstN: "*"},
{SrcPeer: "peer", SrcNS: "exact", SrcN: "exact", DstNS: "exact", DstN: "*"},
{SrcPeer: "", SrcNS: "exact", SrcN: "*", DstNS: "exact", DstN: "*"},
{SrcPeer: "peer", SrcNS: "exact", SrcN: "*", DstNS: "exact", DstN: "*"},
{SrcPeer: "", SrcNS: "*", SrcN: "*", DstNS: "exact", DstN: "*"},
{SrcPeer: "peer", SrcNS: "*", SrcN: "*", DstNS: "exact", DstN: "*"},
{SrcPeer: "", SrcNS: "exact", SrcN: "exact", DstNS: "*", DstN: "*"},
{SrcPeer: "peer", SrcNS: "exact", SrcN: "exact", DstNS: "*", DstN: "*"},
{SrcPeer: "", SrcNS: "exact", SrcN: "*", DstNS: "*", DstN: "*"},
{SrcPeer: "peer", SrcNS: "exact", SrcN: "*", DstNS: "*", DstN: "*"},
{SrcPeer: "", SrcNS: "*", SrcN: "*", DstNS: "*", DstN: "*"},
{SrcPeer: "peer", SrcNS: "*", SrcN: "*", DstNS: "*", DstN: "*"},
},
},
{
"tiebreak deterministically",
[]fields{
{SrcNS: "a", SrcN: "*", DstNS: "a", DstN: "b"},
{SrcNS: "a", SrcN: "*", DstNS: "a", DstN: "a"},
{SrcNS: "b", SrcN: "a", DstNS: "a", DstN: "a"},
{SrcNS: "a", SrcN: "b", DstNS: "a", DstN: "a"},
{SrcNS: "a", SrcN: "a", DstNS: "b", DstN: "a"},
{SrcNS: "a", SrcN: "a", DstNS: "a", DstN: "b"},
{SrcNS: "a", SrcN: "a", DstNS: "a", DstN: "a"},
},
[]fields{
// Exact matches first in lexicographical order (arbitrary but
// deterministic)
{SrcNS: "a", SrcN: "a", DstNS: "a", DstN: "a"},
{SrcNS: "a", SrcN: "a", DstNS: "a", DstN: "b"},
{SrcNS: "a", SrcN: "a", DstNS: "b", DstN: "a"},
{SrcNS: "a", SrcN: "b", DstNS: "a", DstN: "a"},
{SrcNS: "b", SrcN: "a", DstNS: "a", DstN: "a"},
// Wildcards next, lexicographical
{SrcNS: "a", SrcN: "*", DstNS: "a", DstN: "a"},
{SrcNS: "a", SrcN: "*", DstNS: "a", DstN: "b"},
},
},
}
for _, tc := range cases {
t.Run(tc.Name, func(t *testing.T) {
var input Intentions
for _, v := range tc.Input {
input = append(input, &Intention{
SourcePeer: v.SrcPeer,
SourceNS: v.SrcNS,
SourceName: v.SrcN,
DestinationNS: v.DstNS,
DestinationName: v.DstN,
})
}
// Set all the precedence values
for _, ixn := range input {
ixn.UpdatePrecedence()
}
// Sort
sort.Sort(IntentionPrecedenceSorter(input))
// Get back into a comparable form
var actual []fields
for _, v := range input {
actual = append(actual, fields{
SrcPeer: v.SourcePeer,
SrcNS: v.SourceNS,
SrcN: v.SourceName,
DstNS: v.DestinationNS,
DstN: v.DestinationName,
})
}
assert.Equal(t, tc.Expected, actual)
})
}
}
func TestIntention_SetHash(t *testing.T) {
i := Intention{
ID: "the-id",
Description: "the-description",
SourceNS: "source-ns",
SourceName: "source-name",
DestinationNS: "dest-ns",
DestinationName: "dest-name",
SourceType: "source-type",
Action: "action",
Precedence: 123,
Meta: map[string]string{
"meta1": "one",
"meta2": "two",
},
}
i.SetHash()
expected := []byte{
0x20, 0x89, 0x55, 0xdb, 0x69, 0x34, 0xce, 0x89, 0xd8, 0xb9, 0x2e, 0x3a,
0x85, 0xb6, 0xea, 0x43, 0xb2, 0x23, 0x16, 0x93, 0x94, 0x13, 0x2a, 0xe4,
0x81, 0xfe, 0xe, 0x34, 0x91, 0x99, 0xe9, 0x8d,
}
require.Equal(t, expected, i.Hash)
}
func TestIntention_String(t *testing.T) {
type testcase struct {
ixn *Intention
expect string
}
testID := generateUUID()
partitionPrefix := DefaultEnterpriseMetaInDefaultPartition().PartitionOrEmpty()
if partitionPrefix != "" {
partitionPrefix += "/"
}
cases := map[string]testcase{
"legacy allow": {
&Intention{
ID: testID,
SourceName: "foo",
DestinationName: "bar",
Action: IntentionActionAllow,
},
partitionPrefix + `default/foo => ` + partitionPrefix + `default/bar (ID: ` + testID + `, Precedence: 9, Action: ALLOW)`,
},
"legacy deny": {
&Intention{
ID: testID,
SourceName: "foo",
DestinationName: "bar",
Action: IntentionActionDeny,
},
partitionPrefix + `default/foo => ` + partitionPrefix + `default/bar (ID: ` + testID + `, Precedence: 9, Action: DENY)`,
},
"L4 allow": {
&Intention{
SourceName: "foo",
DestinationName: "bar",
Action: IntentionActionAllow,
},
partitionPrefix + `default/foo => ` + partitionPrefix + `default/bar (Precedence: 9, Action: ALLOW)`,
},
"L4 deny": {
&Intention{
SourceName: "foo",
DestinationName: "bar",
Action: IntentionActionDeny,
},
partitionPrefix + `default/foo => ` + partitionPrefix + `default/bar (Precedence: 9, Action: DENY)`,
},
"L7 one perm": {
&Intention{
SourceName: "foo",
DestinationName: "bar",
Permissions: []*IntentionPermission{
{
Action: IntentionActionAllow,
HTTP: &IntentionHTTPPermission{
PathPrefix: "/foo",
},
},
},
},
partitionPrefix + `default/foo => ` + partitionPrefix + `default/bar (Precedence: 9, Permissions: 1)`,
},
"L7 two perms": {
&Intention{
SourceName: "foo",
DestinationName: "bar",
Permissions: []*IntentionPermission{
{
Action: IntentionActionDeny,
HTTP: &IntentionHTTPPermission{
PathExact: "/foo/admin",
},
},
{
Action: IntentionActionAllow,
HTTP: &IntentionHTTPPermission{
PathPrefix: "/foo",
},
},
},
},
partitionPrefix + `default/foo => ` + partitionPrefix + `default/bar (Precedence: 9, Permissions: 2)`,
},
"L4 allow with source peer": {
&Intention{
SourceName: "foo",
SourcePeer: "billing",
DestinationName: "bar",
Action: IntentionActionAllow,
},
`peer(billing)/default/foo => ` + partitionPrefix + `default/bar (Precedence: 9, Action: ALLOW)`,
},
}
for name, tc := range cases {
tc := tc
// Add a bunch of required fields.
tc.ixn.FillPartitionAndNamespace(DefaultEnterpriseMetaInDefaultPartition(), true)
tc.ixn.UpdatePrecedence()
t.Run(name, func(t *testing.T) {
got := tc.ixn.String()
require.Equal(t, tc.expect, got)
})
}
}
func TestIntentionQueryRequest_CacheInfoKey(t *testing.T) {
assertCacheInfoKeyIsComplete(t, &IntentionQueryRequest{})
}
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