229 lines
9.1 KiB
Go
229 lines
9.1 KiB
Go
package broker
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import (
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"context"
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"slices"
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"strings"
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"testing"
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"time"
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"github.com/nats-io/nats.go/jetstream"
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"github.com/novox/mesh-controller/internal/testbus"
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)
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// **The controller may write every bucket it writes** (novox/hq to-be 45 §1, issue 269). Writing a
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// key is a publish to the bucket's own subject, which the management interface's grant does not
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// cover: the cancelled sets' writes timed out for want of this, and the controller's own buckets
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// would have.
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func TestTheControllerMayWriteEveryBucketItWrites(t *testing.T) {
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p, err := PermissionsFor(Principal{Kind: KindController, PasswordHash: "x"})
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if err != nil {
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t.Fatal(err)
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}
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want := []string{"$KV." + CallsBucket + ".>", "$KV." + HandActsBucket + ".>",
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"$KV." + AssignmentsBucket + ".>", "$KV." + DeclaredConfigBucket + ".>",
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"$KV." + PredefinedBucket + ".>"}
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for _, seat := range seatsTheControllerAsks {
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if hasCancelledSet(seat) {
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want = append(want, "$KV."+CancelledSetName(seat)+".>")
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}
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}
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for _, subject := range want {
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if !slices.Contains(p.Publish, subject) {
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t.Errorf("the controller may not publish %s, so it cannot write that bucket", subject)
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}
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}
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if slices.Contains(p.Publish, "$KV.>") {
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t.Error("the controller may write any bucket, a module's state included")
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}
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}
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// **A module reads a record mirror through `reads`, and never writes it** (ADR 0201 §1, design 54 §5,
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// design 57 F3): granted the direct reads and watches of the bucket, and refused at composition a grant to
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// write it, whose writer is the controller.
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func TestAModuleReadsTheControllersMirrorsAndWritesNone(t *testing.T) {
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reader := Principal{Kind: KindModule, Node: "one", Module: "mesh-config", PasswordHash: "x",
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Reads: []string{"mesh-controller." + MirrorAssignments, "mesh-controller." + MirrorDeclaredConfig,
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"mesh-controller." + MirrorPredefined}}
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p, err := PermissionsFor(reader)
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if err != nil {
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t.Fatal(err)
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}
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for _, bucket := range []string{AssignmentsBucket, DeclaredConfigBucket, PredefinedBucket} {
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for _, subject := range []string{"$JS.API.STREAM.INFO.KV_" + bucket, "$JS.API.DIRECT.GET.KV_" + bucket + ".>",
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"$JS.API.CONSUMER.CREATE.KV_" + bucket + ".>"} {
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if !slices.Contains(p.Publish, subject) {
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t.Errorf("a module reading %s may not publish %s", bucket, subject)
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}
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}
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for _, subject := range p.Publish {
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if SubjectsOverlap(subject, "$KV."+bucket+".>") {
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t.Errorf("a module reading %s may write it through %s", bucket, subject)
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}
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}
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if err := CheckWriters(reader, []string{"$KV." + bucket + ".>"}); err == nil {
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t.Errorf("a module granted a write of %s would compose", bucket)
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}
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}
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}
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// **A machine's node tools may say they are there, as that machine and no other** (novox/hq to-be 45
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// S11), and the controller may hear the bus's advisories and ask who answers — read-only, named.
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func TestTheWatchedSignalsMayBeSaidAndHeard(t *testing.T) {
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tools, err := PermissionsFor(Principal{Kind: KindNodeTools, Node: "anchor", Module: RuntimeModule, PasswordHash: "x"})
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if err != nil {
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t.Fatal(err)
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}
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if !slices.Contains(tools.Publish, "mesh.control.anchor.tools-alive") {
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t.Error("the node tools may not say they are there")
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}
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for _, s := range tools.Publish {
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if strings.Contains(s, "tools-alive") && s != "mesh.control.anchor.tools-alive" {
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t.Errorf("the node tools may say %s", s)
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}
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}
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controller, err := PermissionsFor(Principal{Kind: KindController, PasswordHash: "x"})
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if err != nil {
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t.Fatal(err)
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}
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for _, s := range BusAdvisories {
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if !slices.Contains(controller.Subscribe, s) {
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t.Errorf("the controller may not hear %s", s)
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}
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}
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if !slices.Contains(controller.Publish, "$SRV.INFO") || slices.Contains(controller.Subscribe, "$JS.EVENT.>") {
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t.Error("the controller may not ask who answers, or hears every API call")
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}
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}
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// The controller's record of what it asked the operator is bounded (correctness review of 2026-10-08): one
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// value a key, a month's age, and a size it cannot outgrow.
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func TestWhatTheControllerAskedIsBounded(t *testing.T) {
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js, err := Dial(testbus.URL(t))
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if err != nil {
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t.Fatal(err)
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}
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defer js.Close()
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if err := js.EnsureControllerBuckets(); err != nil {
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t.Fatal(err)
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}
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ctx, cancel := context.WithTimeout(context.Background(), 10*time.Second)
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defer cancel()
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kv, err := jetstream.New(js.Conn())
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if err != nil {
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t.Fatal(err)
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}
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bucket, err := kv.KeyValue(ctx, AskedBucket)
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if err != nil {
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t.Fatal(err)
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}
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status, err := bucket.Status(ctx)
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if err != nil {
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t.Fatal(err)
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}
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info := status.(*jetstream.KeyValueBucketStatus).StreamInfo()
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if status.History() != 1 || status.TTL() != AskedKeptFor || info.Config.MaxBytes <= 0 || info.Config.MaxBytes > 64<<20 {
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t.Errorf("history %d, age %s, bytes %d", status.History(), status.TTL(), info.Config.MaxBytes)
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}
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}
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// **A listed mirror is no undeclared bucket** (ADR 0356 §3, ADR 0201 §16): the controller's list of its mirrors
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// stands for their declaration, so the report of state nothing declares never names one.
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func TestAListedMirrorIsNotReportedAsUndeclared(t *testing.T) {
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names := []string{"gone_state"}
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for _, m := range ControllerMirrors() {
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names = append(names, BucketName(ControllerSeat, m))
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}
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undeclared, err := RaiseBuckets(fakeBuckets{names: names}, nil)
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if err != nil {
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t.Fatal(err)
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}
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if !slices.Equal(undeclared, []string{"gone_state"}) {
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t.Fatalf("the report of undeclared state names %v", undeclared)
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}
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}
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// **The mirrors' list and the writers table agree** (ADR 0356 §3, to-be 45 §1): every listed mirror is a row of
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// the table whose one writer is the controller, on its bucket alone; and every row that writes a bucket of the
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// controller's named as a mirror is on the list.
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func TestTheMirrorsListAndTheWritersTableAgree(t *testing.T) {
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controller := Principal{Kind: KindController}
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module := Principal{Kind: KindModule, Module: ControllerSeat, Node: "one"}
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rowed := map[string]bool{}
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for _, row := range WritersTable {
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if !strings.HasSuffix(row.State, " mirror") {
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continue
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}
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for _, subject := range row.Subjects {
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bucket := strings.TrimSuffix(strings.TrimPrefix(subject, "$KV."), ".>")
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rowed[bucket] = true
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if row.Writes == nil || !row.Writes(controller, subject) || row.Writes(module, subject) {
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t.Errorf("%q is not written by the controller alone", row.State)
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}
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}
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}
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listed := map[string]bool{}
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for _, m := range ControllerMirrors() {
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bucket := BucketName(ControllerSeat, m)
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listed[bucket] = true
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if !rowed[bucket] {
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t.Errorf("the mirror %s is listed and no row of the writers table writes it", bucket)
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}
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if !IsControllerBucket(bucket) || !slices.Contains(ControllerBuckets(), bucket) {
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t.Errorf("the mirror %s is listed and not asserted as the controller's own", bucket)
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}
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}
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for bucket := range rowed {
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if !listed[bucket] {
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t.Errorf("the writers table writes the mirror %s, which the list does not name", bucket)
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}
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}
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}
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// **The controller may ask the vault's intake verbs in its own name** (design 57's V2, issue 675): the vault
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// takes a value only from the controller, which it knows from the subject that names its caller — so the
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// controller is granted that subject for the verbs the vault's holder serves, and no more of the vault's seat.
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// `get` among them since issue 755 (ADR 0349 §16): the vault answers the controller a core credential sealed to its
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// machine alone, which the controller carries and cannot open.
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// Composed from the records, as the issued tools are: the installer's first user list carries none.
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func TestTheControllerMayAskTheVaultInItsOwnName(t *testing.T) {
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vault := Declared{Module: "mesh-vault", Holds: []Seat{{Name: "mesh-vault",
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Serves: []string{"get", "accept", "secret-ask", "issued", "rotate"}}}}
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users, err := Users(Records{Nodes: []string{"novox"}, Assigned: map[string][]Declared{"novox": {vault}}})
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if err != nil {
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t.Fatal(err)
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}
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controller := users[0]
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if strings.Join(controller.AsksTheVault, ",") != "accept,get,issued,rotate,secret-ask" {
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t.Fatalf("composed %v", controller.AsksTheVault)
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}
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p, err := PermissionsFor(controller)
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if err != nil {
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t.Fatal(err)
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}
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for _, verb := range []string{"accept", "secret-ask", "issued", "rotate", "get"} {
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if !MayPublish(p, CalledSubject("mesh.seat.mesh-vault.tool."+verb, ControllerName)) {
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t.Errorf("the controller may not ask the vault's %s in its own name", verb)
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}
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if MayPublish(p, CalledSubject("mesh.seat.mesh-vault.tool."+verb, "anchor.node-tools")) {
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t.Errorf("the controller may ask the vault's %s in another's name", verb)
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}
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}
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if MayPublish(p, CalledSubject("mesh.seat.mesh-vault.tool.move-in", ControllerName)) {
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t.Error("the controller may move a value in: that is a node-engine's alone")
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}
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// A vault that serves none of them yet composes no grant, nor does genesis.
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older := Declared{Module: "mesh-vault", Holds: []Seat{{Name: "mesh-vault", Serves: []string{"move-in"}}}}
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users, _ = Users(Records{Nodes: []string{"novox"}, Assigned: map[string][]Declared{"novox": {older}}})
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if len(users[0].AsksTheVault) != 0 {
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t.Errorf("a vault serving none composed %v", users[0].AsksTheVault)
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}
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genesis, _ := PermissionsFor(Principal{Kind: KindController, PasswordHash: "x"})
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for _, s := range genesis.Publish {
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if strings.Contains(s, "mesh-vault") {
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t.Errorf("the installer's controller may publish %s", s)
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}
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}
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}
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