Grant a seat's traffic by caller and by kind, so an ask's asker and a channel's kind are facts the bus enforces (hq ADR 0259)

This commit is contained in:
jochen
2026-10-09 13:48:56 +02:00
committed by jschoubben
parent 63e85b25e6
commit f5f315cc95
11 changed files with 831 additions and 12 deletions
+3 -1
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@@ -126,7 +126,9 @@ func ConsumerFor(p Principal) (Consumer, bool) {
// A module that reacts to anything — a module's events or a role's (novox/hq ADR 0121). Watching
// a role was missing here, so the one module that does it got no consumer at all: it started,
// connected, and its graph stayed empty with nothing anywhere reporting why.
if p.Kind != KindModule || (len(p.Consumes) == 0 && len(p.Watches) == 0) {
// And one that hears its own answers on a seat it uses (novox/hq ADR 0259 §3): an asker's warrants.
hearsItsOwn := len(SeatTrafficOf(p.Module, nil, p.Uses, nil).Subscribe) > 0
if p.Kind != KindModule || (len(p.Consumes) == 0 && len(p.Watches) == 0 && !hearsItsOwn) {
return Consumer{}, false
}
perms, err := PermissionsFor(p)
+10
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@@ -50,6 +50,12 @@ type Membership struct {
// and refuses, with the reason, what is not on it — the bus enforces only the union over every
// module on the machine.
State []StateIssued `json:"state,omitempty"`
// SeatTraffic is what this module's code may submit, say, hear, take, ask, answer and read on seats
// that name their caller or their kind (novox/hq ADR 0259 §3). The runtime carrying the module
// publishes, takes and answers for it only what is listed here: the bus enforces only the union
// over every module on the machine, so one module's code reaching another's name or kind through
// the runtime is the runtime's to refuse.
SeatTraffic *SeatTraffic `json:"seat-traffic,omitempty"`
}
// Served is one address a tool is answered on.
@@ -109,6 +115,10 @@ func MembershipFor(node string, d Declared, where Placements) Membership {
}
}
m.State = stateIssuedFor(d, node)
if t := SeatTrafficOf(d.Module, d.Holds, d.Uses, d.Watches); len(t.Publish)+len(t.Subscribe)+
len(t.Answers)+len(t.Workers)+len(t.Records) > 0 {
m.SeatTraffic = &t
}
if len(d.Invokes) > 0 {
m.Reaches = map[string][]string{}
for _, t := range d.Invokes {
+38 -1
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@@ -63,6 +63,18 @@ type Seat struct {
Emits []string
Serves []string
Versions []string // protocol versions served beside the current one; empty for v1 only
// Kinded says the seat is a kinded bench (novox/hq ADR 0234 §2, ADR 0259 §3): each holder claims one
// kind, and its verbs' subjects carry it. Kind is the kind this principal's claim names, for a seat it
// holds.
Kinded bool
Kind string
// ByCaller are the accepts and emits whose last token names the calling module (ADR 0259 §3).
ByCaller []string
// Proofs are the seat's proof verbs: core request and reply, never on a stream (ADR 0259 §3).
Proofs []string
// Records are the holder's buckets, by their full name, each user reads under its own name.
Records []string
}
// A Principal is one user of the bus. Its permissions are derived from what it declares and
@@ -530,6 +542,9 @@ func PermissionsFor(p Principal) (Permissions, error) {
// 2b. Events of a role it watches, under the seat's own namespace. Subscribe only: watching a
// role is hearing what it announced, not taking part in it.
for _, w := range p.Watches {
if w.Kinded {
continue // composed by SeatTrafficOf below
}
for _, e := range w.Emits {
sub = append(sub, seatSubject(w, "event", e))
}
@@ -548,6 +563,13 @@ func PermissionsFor(p Principal) (Permissions, error) {
// 3. Seats it holds: full participation.
for _, s := range p.Holds {
if s.isNewTraffic() {
// Composed by SeatTrafficOf below, worker and all; only its tools are served here.
for _, t := range s.Serves {
sub = append(sub, seatToolSubject(s, t, p.Node))
}
continue
}
// Taking work from the role's queue: the worker consumer every holder shares (asked
// about, pulled from, acknowledged), on the seat's own stream (novox/hq ADR 0190). A
// holder pulls — asks the consumer for its next message, answered on its own inbox —
@@ -590,7 +612,7 @@ func PermissionsFor(p Principal) (Permissions, error) {
// seat's inbound subject and watch other modules' traffic, nor publish its outbound
// events and lie about outcomes (design 29 §2).
for _, s := range p.Uses {
for _, a := range s.Accepts {
for _, a := range plainVerbs(s, s.Accepts) {
pub = append(pub, seatSubject(s, "accept", a))
}
for _, t := range s.Serves {
@@ -603,6 +625,12 @@ func PermissionsFor(p Principal) (Permissions, error) {
pub = append(pub, stateGrants(stateAccess{Module: p.Module, Node: p.Node, Keeps: p.State,
PerMachine: p.PerMachine, Reads: p.Reads, KeyedReads: p.KeyedReads})...)
// 6. Its traffic on seats that name their caller or their kind, ask proofs or keep records
// (novox/hq ADR 0259 §3).
tp, ts := SeatTrafficOf(p.Module, p.Holds, p.Uses, p.Watches).grants()
pub = append(pub, tp...)
sub = append(sub, ts...)
case KindNodeTools:
// **One process serves what every module on the machine would have served for itself**
// (novox/hq ADR 0175). Each carried module's whole tool namespace — the same grant that
@@ -680,6 +708,15 @@ func PermissionsFor(p Principal) (Permissions, error) {
pub = append(pub, stateGrants(stateAccess{Module: d.Module, Node: p.Node, Keeps: stateNames(d.State),
PerMachine: perMachineNames(d.State), Reads: d.Reads, KeyedReads: d.KeyedReads})...)
}
// **And the seat traffic of the modules it carries** (novox/hq ADR 0259 §3): a bundle reaches the
// bus only through its runtime, so the runtime is granted the union. That one module's code does
// not publish under another's name or kind through it is the runtime's to keep, from the seat
// traffic each module's membership lists.
for _, d := range p.Carries {
tp, ts := SeatTrafficOf(d.Module, d.Holds, d.Uses, d.Watches).grants()
pub = append(pub, tp...)
sub = append(sub, ts...)
}
sub = unique(sub)
pub = unique(pub)
}
+253
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@@ -0,0 +1,253 @@
package broker
import "sort"
// What a module may say and take on the seats it holds, uses and watches, beyond tools (novox/hq ADR
// 0259 §3, to-be 46 §10).
//
// Three rules are added to the ones a seat always had, each a subject whose last token names who may
// publish it, granted to that publisher alone — the way a node seat's event about a machine carries the
// machine (ADR 0219):
//
// - **A verb named by its caller** (`by-caller`). A user of the seat submits that accept, and hears that
// event, under its own module's name and no other: `accept.ask.<module>`, `event.decided.<module>`. The
// holder takes every caller's accept and says the event to any caller. So an ask's asker is a fact the
// server enforces, and a warrant reaches only the asker it is for.
// - **A kinded bench** (ADR 0234 §2). A holder claims one kind and takes its own kind's accepts, says its
// own kind's events and asks its own kind's proofs, and nothing of another kind; a user submits to any
// kind. Each kind has its own worker on the seat's queue, so a holder that is away keeps its work and
// holds up no other kind.
// - **A proof** (`proofs`): core request and reply on `mesh.seat.<seat>.proof.<verb>.<kind>`. No stream's
// subjects cover it, so what travels there — a code typed by the operator — is never persisted. A kinded
// holder asks with its own kind; the modules that watch the seat answer.
//
// And one read: **a holder's records**, a bucket the seat names, read by each user under its own name only
// (`$KV.<bucket>.<module>.>`), so an asker reads the state of its own asks and no other asker's.
// Worker is one durable consumer a holder pulls a seat's work from.
type Worker struct {
Stream string
Consumer string
Filter string
}
// SeatTraffic is one module's seat traffic beyond tools. Publish and Subscribe are subject patterns, in the
// server's wildcards; the runtime that carries the module checks a bundle's request against them, since
// the runtime's own principal holds the union of every module it carries.
type SeatTraffic struct {
// Publish is what it submits (accepts of seats it uses), says (events of seats it holds) and asks
// (proofs of seats it holds a kind of).
Publish []string `json:"publish,omitempty"`
// Subscribe is what it hears: events of seats it uses that are named by caller, events of seats it
// watches, and accepts of seats it holds.
Subscribe []string `json:"subscribe,omitempty"`
// Answers is the proof subjects it answers, as a watcher of a kinded seat.
Answers []string `json:"answers,omitempty"`
// Workers are the work queues it takes from, as a holder.
Workers []Worker `json:"workers,omitempty"`
// Records is the direct-get subjects of the records it reads under its own name.
Records []string `json:"records,omitempty"`
}
// KindedBenches are the seats that may be kinded (ADR 0234 §2): making another is a decision, recorded.
var KindedBenches = map[string]bool{"channel": true, "intake": true}
// WorkerName is the worker a seat's holders pull from: one for the seat, or one per kind on a kinded bench.
func WorkerName(seat, kind string) string {
if kind == "" {
return "SEAT_" + upperSnake(seat) + "_worker"
}
return "SEAT_" + upperSnake(seat) + "_" + upperSnake(kind) + "_worker"
}
func namesVerb(list []string, s string) bool {
for _, x := range list {
if x == s {
return true
}
}
return false
}
// SeatTrafficOf derives one module's seat traffic from the seats it holds, uses and watches. Only seats
// carrying one of the rules above are read: every other seat is composed as it always was.
func SeatTrafficOf(module string, holds, uses, watches []Seat) SeatTraffic {
var t SeatTraffic
for _, s := range holds {
if !s.isNewTraffic() {
continue
}
kind := ""
if s.Kinded {
kind = s.Kind
if kind == "" || !safeSubject.MatchString(kind) {
// A kinded claim without a usable kind is refused at registration; here it is granted
// nothing, which is the same answer at the last place it could be asked.
continue
}
}
if len(s.Accepts) > 0 {
stream := seatStreamName(s.Name)
filter := "mesh.seat." + s.Name + ".accept.>"
if kind != "" {
filter = "mesh.seat." + s.Name + ".accept.*." + kind
}
t.Workers = append(t.Workers, Worker{Stream: stream, Consumer: WorkerName(s.Name, kind), Filter: filter})
}
for _, a := range s.Accepts {
switch {
case kind != "":
t.Subscribe = append(t.Subscribe, seatSubject(s, "accept", a+"."+kind))
case namesVerb(s.ByCaller, a):
t.Subscribe = append(t.Subscribe, seatSubject(s, "accept", a+".*"))
}
}
for _, e := range s.Emits {
switch {
case kind != "":
t.Publish = append(t.Publish, seatSubject(s, "event", e+"."+kind))
case namesVerb(s.ByCaller, e):
t.Publish = append(t.Publish, seatSubject(s, "event", e+".*"))
}
}
if kind != "" {
for _, v := range s.Proofs {
t.Publish = append(t.Publish, seatSubject(s, "proof", v+"."+kind))
}
}
}
for _, s := range uses {
if !s.isNewTraffic() {
continue
}
for _, a := range s.Accepts {
switch {
case namesVerb(s.ByCaller, a):
t.Publish = append(t.Publish, seatSubject(s, "accept", a+"."+module))
case s.Kinded:
t.Publish = append(t.Publish, seatSubject(s, "accept", a+".*"))
}
}
for _, e := range s.Emits {
if namesVerb(s.ByCaller, e) {
t.Subscribe = append(t.Subscribe, seatSubject(s, "event", e+"."+module))
}
}
for _, b := range s.Records {
if !safeSubject.MatchString(b) {
continue
}
t.Records = append(t.Records, "$JS.API.DIRECT.GET.KV_"+b+".$KV."+b+"."+module+".>")
}
}
for _, w := range watches {
if w.Kinded {
for _, e := range w.Emits {
t.Subscribe = append(t.Subscribe, seatSubject(w, "event", e+".*"))
}
for _, v := range w.Proofs {
t.Answers = append(t.Answers, seatSubject(w, "proof", v+".*"))
}
}
}
t.Publish = unique(t.Publish)
t.Subscribe = unique(t.Subscribe)
t.Answers = unique(t.Answers)
t.Records = unique(t.Records)
sort.Slice(t.Workers, func(i, j int) bool { return t.Workers[i].Consumer < t.Workers[j].Consumer })
return t
}
// grants is the bus permissions seat traffic needs: the subjects themselves, and the JetStream API a
// worker is pulled and acknowledged through and a record is read through.
func (t SeatTraffic) grants() (pub, sub []string) {
pub = append(pub, t.Publish...)
sub = append(sub, t.Subscribe...)
sub = append(sub, t.Answers...)
for _, w := range t.Workers {
pub = append(pub,
"$JS.API.CONSUMER.INFO."+w.Stream+"."+w.Consumer,
"$JS.API.CONSUMER.MSG.NEXT."+w.Stream+"."+w.Consumer,
"$JS.ACK."+w.Stream+"."+w.Consumer+".>")
}
pub = append(pub, t.Records...)
return pub, sub
}
// isNewTraffic says whether a seat carries any of the rules above, so a seat that carries none is
// composed exactly as before them.
func (s Seat) isNewTraffic() bool {
return s.Kinded || len(s.ByCaller) > 0 || len(s.Proofs) > 0 || len(s.Records) > 0
}
// plainVerbs is a seat's accepts or emits with those the rules above compose taken out: a verb named by
// its caller and every verb of a kinded bench are composed by SeatTrafficOf and nowhere else.
func plainVerbs(s Seat, verbs []string) []string {
if s.Kinded {
return nil
}
var out []string
for _, v := range verbs {
if !namesVerb(s.ByCaller, v) {
out = append(out, v)
}
}
return out
}
// SeatTrafficObjects is the work queues and workers the seat traffic of every composed user implies
// (novox/hq ADR 0259 §3): a queue for each seat a holder takes work from, and each holder's worker on it —
// one per kind on a kinded bench, filtered to that kind, so the kinds never take each other's work. Only
// seats carrying the rules above; the mesh's own seats' queues are RaiseSeats'.
func SeatTrafficObjects(users []Principal) ([]Stream, []Consumer) {
streams := map[string]Stream{}
consumers := map[string]Consumer{}
add := func(module string, holds []Seat) {
for _, w := range SeatTrafficOf(module, holds, nil, nil).Workers {
seat := ""
for _, s := range holds {
if seatStreamName(s.Name) == w.Stream {
seat = s.Name
}
}
streams[w.Stream] = Stream{
Name: w.Stream,
Subjects: []string{"mesh.seat." + seat + ".accept.>"},
Retention: RetentionWorkQueue,
MaxAge: 7 * 24 * 60 * 60,
Why: "work submitted to the " + seat + " seat; its holders take it, each kind its own, " +
"and it queues while nobody does",
}
consumers[w.Consumer] = Consumer{
Name: w.Consumer,
Stream: w.Stream,
Filters: []string{w.Filter},
AckWaitSeconds: 60,
MaxDeliver: 5,
Why: module + " holds " + seat + "; it pulls one ask at a time and acknowledges once it has " +
"recorded it, so a crash redelivers rather than loses",
}
}
}
for _, p := range users {
switch p.Kind {
case KindModule:
add(p.Module, p.Holds)
case KindNodeTools:
for _, d := range p.Carries {
add(d.Module, d.Holds)
}
}
}
var ss []Stream
for _, s := range streams {
ss = append(ss, s)
}
sort.Slice(ss, func(i, j int) bool { return ss[i].Name < ss[j].Name })
var cs []Consumer
for _, c := range consumers {
cs = append(cs, c)
}
sort.Slice(cs, func(i, j int) bool { return cs[i].Name < cs[j].Name })
return ss, cs
}
+240
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@@ -0,0 +1,240 @@
package broker
import (
"strings"
"testing"
)
// The seats of novox/hq ADR 0259 §3, as the messenger declares them.
func operatorChannel() Seat {
return Seat{Name: "operator-channel", Scope: "mesh", Accepts: []string{"ask", "cancel"},
Emits: []string{"decided"}, Serves: []string{"open", "history", "notify"},
ByCaller: []string{"ask", "cancel", "decided"}, Records: []string{"messenger_asks"}}
}
func channelSeat(kind string) Seat {
return Seat{Name: "channel", Scope: "mesh", Accepts: []string{"show", "edit", "send"}, Kinded: true, Kind: kind}
}
func intakeSeat(kind string) Seat {
return Seat{Name: "intake", Scope: "mesh", Emits: []string{"choice", "link"}, Proofs: []string{"code"},
Kinded: true, Kind: kind}
}
func allowed(patterns []string, subject string) bool {
for _, p := range patterns {
if subjectMatches(p, subject) {
return true
}
}
return false
}
func perms(t *testing.T, p Principal) Permissions {
t.Helper()
got, err := PermissionsFor(p)
if err != nil {
t.Fatal(err)
}
return got
}
func TestAnAskerAsksAndHearsUnderItsOwnNameOnly(t *testing.T) {
asker := Principal{Kind: KindModule, Node: "anchor", Module: "mesh-delivery", Uses: []Seat{operatorChannel()}}
got := perms(t, asker)
for _, s := range []string{
"mesh.seat.operator-channel.accept.ask.mesh-delivery",
"mesh.seat.operator-channel.accept.cancel.mesh-delivery",
"$JS.API.DIRECT.GET.KV_messenger_asks.$KV.messenger_asks.mesh-delivery.a1",
} {
if !allowed(got.Publish, s) {
t.Errorf("an asker may not publish %s", s)
}
}
for _, s := range []string{
"mesh.seat.operator-channel.accept.ask.mesh-controller",
"mesh.seat.operator-channel.accept.ask.*",
"mesh.seat.operator-channel.event.decided.mesh-delivery",
"$JS.API.DIRECT.GET.KV_messenger_asks.$KV.messenger_asks.mesh-controller.a1",
"$KV.messenger_asks.mesh-delivery.a1",
} {
if allowed(got.Publish, s) {
t.Errorf("an asker may publish %s, which is not its own to submit", s)
}
}
if !allowed(got.Subscribe, "mesh.seat.operator-channel.event.decided.mesh-delivery") {
t.Error("an asker does not hear its own warrants")
}
if allowed(got.Subscribe, "mesh.seat.operator-channel.event.decided.mesh-controller") {
t.Error("an asker hears another asker's warrants")
}
// And its own consumer carries its warrants, so a restart catches up.
c, ok := ConsumerFor(asker)
if !ok || !allowed(c.Filters, "mesh.seat.operator-channel.event.decided.mesh-delivery") {
t.Errorf("the asker's consumer does not carry its warrants: %v", c.Filters)
}
}
func TestOnlyTheHolderPublishesAWarrant(t *testing.T) {
users, err := Users(Records{
Nodes: []string{"anchor"},
Assigned: map[string][]Declared{"anchor": {
{Module: "messenger", Holds: []Seat{operatorChannel()}, Uses: []Seat{channelSeat("")},
Watches: []Seat{{Name: "intake", Emits: []string{"choice", "link"}, Kinded: true, Proofs: []string{"code"}}}},
{Module: "mesh-delivery", Uses: []Seat{operatorChannel()}},
{Module: "telegram", Holds: []Seat{channelSeat("telegram"), intakeSeat("telegram")}},
}},
})
if err != nil {
t.Fatal(err)
}
for _, u := range users {
got := perms(t, u)
says := allowed(got.Publish, "mesh.seat.operator-channel.event.decided.mesh-delivery")
if says != (u.Module == "messenger") {
t.Errorf("%s %s publish a warrant", u.Username(), map[bool]string{true: "may", false: "may not"}[says])
}
}
}
func TestTheHolderTakesEveryCallersAskThroughItsWorker(t *testing.T) {
got := perms(t, Principal{Kind: KindModule, Node: "anchor", Module: "messenger", Holds: []Seat{operatorChannel()}})
if !allowed(got.Subscribe, "mesh.seat.operator-channel.accept.ask.mesh-delivery") {
t.Error("the router does not take an ask")
}
for _, s := range []string{
"$JS.API.CONSUMER.MSG.NEXT.SEAT_OPERATOR_CHANNEL.SEAT_OPERATOR_CHANNEL_worker",
"$JS.ACK.SEAT_OPERATOR_CHANNEL.SEAT_OPERATOR_CHANNEL_worker.x",
"mesh.seat.operator-channel.event.decided.mesh-controller",
} {
if !allowed(got.Publish, s) {
t.Errorf("the router may not publish %s", s)
}
}
if allowed(got.Publish, "mesh.seat.operator-channel.accept.ask.messenger") {
t.Error("the holder may ask its own seat without using it")
}
}
func TestAKindedHolderReachesItsOwnKindAndNoOther(t *testing.T) {
got := perms(t, Principal{Kind: KindModule, Node: "anchor", Module: "telegram",
Holds: []Seat{channelSeat("telegram"), intakeSeat("telegram")}})
for _, s := range []string{
"mesh.seat.intake.event.choice.telegram", "mesh.seat.intake.event.link.telegram",
"mesh.seat.intake.proof.code.telegram",
"$JS.API.CONSUMER.MSG.NEXT.SEAT_CHANNEL.SEAT_CHANNEL_TELEGRAM_worker",
} {
if !allowed(got.Publish, s) {
t.Errorf("telegram may not publish %s", s)
}
}
for _, s := range []string{
"mesh.seat.intake.event.choice.desktop", "mesh.seat.intake.proof.code.desktop",
"mesh.seat.channel.accept.show.telegram",
"$JS.API.CONSUMER.MSG.NEXT.SEAT_CHANNEL.SEAT_CHANNEL_DESKTOP_worker",
"mesh.seat.operator-channel.event.decided.mesh-delivery",
} {
if allowed(got.Publish, s) {
t.Errorf("telegram may publish %s", s)
}
}
if !allowed(got.Subscribe, "mesh.seat.channel.accept.show.telegram") ||
allowed(got.Subscribe, "mesh.seat.channel.accept.show.desktop") {
t.Error("telegram does not take exactly its own kind's work")
}
if allowed(got.Subscribe, "mesh.seat.intake.proof.code.telegram") {
t.Error("a channel answers its own proofs")
}
}
func TestTheWatcherAnswersProofsAndHearsEveryKind(t *testing.T) {
got := perms(t, Principal{Kind: KindModule, Node: "anchor", Module: "messenger",
Uses: []Seat{channelSeat("")},
Watches: []Seat{{Name: "intake", Emits: []string{"choice"}, Kinded: true, Proofs: []string{"code"}}}})
for _, s := range []string{"mesh.seat.intake.event.choice.telegram", "mesh.seat.intake.proof.code.desktop"} {
if !allowed(got.Subscribe, s) {
t.Errorf("the router does not hear %s", s)
}
}
if !allowed(got.Publish, "mesh.seat.channel.accept.show.telegram") {
t.Error("the router cannot send a channel its work")
}
if allowed(got.Publish, "mesh.seat.intake.event.choice.telegram") || allowed(got.Publish, "mesh.seat.intake.proof.code.telegram") {
t.Error("the router may say a channel's answer or proof")
}
}
func TestNoStreamKeepsAProof(t *testing.T) {
users, _ := Users(Records{Nodes: []string{"anchor"}, Assigned: map[string][]Declared{"anchor": {
{Module: "telegram", Holds: []Seat{channelSeat("telegram"), intakeSeat("telegram")}},
{Module: "messenger", Holds: []Seat{operatorChannel()}},
}}})
streams, _ := SeatTrafficObjects(users)
streams = append(streams, MeshStreams()...)
for _, s := range streams {
for _, subject := range s.Subjects {
if subjectMatches(subject, "mesh.seat.intake.proof.code.telegram") {
t.Errorf("%s keeps a proof (%s)", s.Name, subject)
}
}
}
}
func TestEachKindHasAWorkerOfItsOwn(t *testing.T) {
users, _ := Users(Records{Nodes: []string{"anchor"}, Assigned: map[string][]Declared{"anchor": {
{Module: "telegram", Holds: []Seat{channelSeat("telegram")}},
{Module: "desk-channel", Holds: []Seat{channelSeat("desktop")}},
{Module: "messenger", Holds: []Seat{operatorChannel()}},
}}})
streams, workers := SeatTrafficObjects(users)
names := map[string]string{}
for _, w := range workers {
names[w.Name] = strings.Join(w.Filters, ",")
}
want := map[string]string{
"SEAT_CHANNEL_TELEGRAM_worker": "mesh.seat.channel.accept.*.telegram",
"SEAT_CHANNEL_DESKTOP_worker": "mesh.seat.channel.accept.*.desktop",
"SEAT_OPERATOR_CHANNEL_worker": "mesh.seat.operator-channel.accept.>",
}
for n, f := range want {
if names[n] != f {
t.Errorf("worker %s filters %q, want %q", n, names[n], f)
}
}
if len(streams) != 2 {
t.Errorf("want the queues of channel and operator-channel, got %v", streams)
}
}
func TestTheRuntimeIsGrantedTheUnionAndTheMembershipEachModulesShare(t *testing.T) {
telegram := Declared{Module: "telegram", Holds: []Seat{channelSeat("telegram"), intakeSeat("telegram")}}
desk := Declared{Module: "desk-channel", Holds: []Seat{channelSeat("desktop"), intakeSeat("desktop")}}
got := perms(t, Principal{Kind: KindNodeTools, Node: "anchor", Module: RuntimeModule, Carries: []Declared{telegram, desk}})
for _, s := range []string{"mesh.seat.intake.event.choice.telegram", "mesh.seat.intake.event.choice.desktop"} {
if !allowed(got.Publish, s) {
t.Errorf("the runtime may not publish %s for a module it carries", s)
}
}
m := MembershipFor("anchor", telegram, Placements{})
if m.SeatTraffic == nil || !allowed(m.SeatTraffic.Publish, "mesh.seat.intake.event.choice.telegram") ||
allowed(m.SeatTraffic.Publish, "mesh.seat.intake.event.choice.desktop") {
t.Errorf("telegram's membership does not list exactly its own kind: %+v", m.SeatTraffic)
}
if plain := MembershipFor("anchor", Declared{Module: "plain"}, Placements{}); plain.SeatTraffic != nil {
t.Error("a module with no such seat is given seat traffic")
}
}
func TestASeatWithoutTheNewRulesIsComposedAsBefore(t *testing.T) {
old := Seat{Name: "node-build-agent", Scope: "node", Accepts: []string{"build"}, Emits: []string{"built"}}
got := perms(t, Principal{Kind: KindModule, Node: "anchor", Module: "builder", Holds: []Seat{old}})
for _, s := range []string{"mesh.seat.node-build-agent.event.built",
"$JS.API.CONSUMER.MSG.NEXT.SEAT_NODE_BUILD_AGENT.SEAT_NODE_BUILD_AGENT_worker"} {
if !allowed(got.Publish, s) {
t.Errorf("an old seat's holder lost %s", s)
}
}
if !allowed(got.Subscribe, "mesh.seat.node-build-agent.accept.build") {
t.Error("an old seat's holder lost its accept")
}
}