The view reads directly and makes no consumer: a consumer's deliver subject publishes anywhere
mesh/merge-gate pass: builds build-agent, mesh-controller, route-proxy → ace, g14, novox, shanks; no bus step; every machine composes with the change as it…
mesh/repo-check pass: its merge-check.sh passed
mesh/delivery ready: it delivers once merged

Review of the view (research 036): granted CONSUMER.CREATE on the bucket's stream, the view made a
push consumer delivering to mesh.mod.mesh-issues.event.opened, and a module subscribed there
received the bucket's entry as the tracker's event — measured on 2.11.17. The server does not hold a
deliver subject to its creator's permissions, so a consumer grant is a publish to any subject.

The view now binds and reads directly, nothing else: STREAM.INFO, DIRECT.GET by key, and the batch
DIRECT.GET (multi_last) that lists every key's newest value into its inbox. No watch: the page
re-reads the key a tracker event names (every event carries the number). The live test lists with
the batch, follows a moved event to the re-read, and is refused the consumer and the watch with
nothing reaching the event subject; the mutation (CONSUMER.CREATE back) fails three tests.

The credential says how to read, and that the step making it work is the next `bus upgrade` while
a new bus build waits, not a push.
This commit is contained in:
jochen
2026-10-10 16:15:16 +02:00
parent a5a355aeec
commit dc5a8208a2
5 changed files with 136 additions and 63 deletions
+25 -23
View File
@@ -3,7 +3,6 @@ package broker
import (
"reflect"
"sort"
"strings"
"testing"
)
@@ -34,35 +33,38 @@ func TestTheViewHearsAndReadsAndCanPublishNothingElse(t *testing.T) {
t.Error("the view may answer, and nothing is ever asked of it")
}
// Every publish grant is a JetStream API request about the one bucket's stream, or its flow control.
// **The mutation this holds against**: a write grant of any shape.
// Every publish grant is binding the one bucket's stream or reading it directly. **The mutation this
// holds against**: a write grant of any shape, and a consumer of any shape — a consumer's deliver
// subject is the creator's choice, so creating one is publishing anywhere (ViewReads).
stream := "KV_" + ViewBucket
for _, p := range perms.Publish {
readOnly := strings.HasPrefix(p, "$JS.API.STREAM.INFO."+stream) ||
strings.HasPrefix(p, "$JS.API.DIRECT.GET."+stream+".") ||
strings.HasPrefix(p, "$JS.API.CONSUMER.CREATE."+stream+".") ||
strings.HasPrefix(p, "$JS.API.CONSUMER.INFO."+stream+".") ||
strings.HasPrefix(p, "$JS.API.CONSUMER.DELETE."+stream+".") ||
strings.HasPrefix(p, "$JS.FC."+stream+".")
readOnly := p == "$JS.API.STREAM.INFO."+stream ||
p == "$JS.API.DIRECT.GET."+stream ||
p == "$JS.API.DIRECT.GET."+stream+".>"
if !readOnly {
t.Errorf("the view is granted a publish on %q, which is not a read of %s", p, ViewBucket)
}
}
for _, refused := range []string{
"$KV." + ViewBucket + ".365", // a put or a delete
"$KV.mesh-controller_conditions.x", // another bucket
"$JS.API.STREAM.CREATE." + stream, // defining the stream
"$JS.API.STREAM.PURGE." + stream, // emptying it
"$JS.API.STREAM.DELETE." + stream, // deleting it
"$JS.API.STREAM.MSG.DELETE." + stream, // deleting a message
"$JS.API.CONSUMER.CREATE.KV_mesh-controller_conditions.x", // reading another bucket
"$JS.API.STREAM.INFO.EVENTS", // the events stream
"$JS.API.INFO", // the account
"mesh.mod.mesh-issues.event.opened", // claiming the tracker said something
"mesh.mod.mesh-issues.tool.open", // opening an issue
"mesh.seat.issue-tracker.tool.open", // through the seat
"mesh.seat.issue-tracker.tool.open.novox", // on one machine
"mesh.seat.mesh-controller.tool.status", // the controller's verbs
"$KV." + ViewBucket + ".365", // a put or a delete
"$KV.mesh-controller_conditions.x", // another bucket
"$JS.API.STREAM.CREATE." + stream, // defining the stream
"$JS.API.STREAM.PURGE." + stream, // emptying it
"$JS.API.STREAM.DELETE." + stream, // deleting it
"$JS.API.STREAM.MSG.DELETE." + stream, // deleting a message
"$JS.API.CONSUMER.CREATE.KV_mesh-controller_conditions.x", // reading another bucket
"$JS.API.CONSUMER.CREATE." + stream + ".w.$KV." + ViewBucket + ".>", // a watch: delivers anywhere
"$JS.API.CONSUMER.CREATE." + stream, // an unnamed consumer
"$JS.API.CONSUMER.DELETE." + stream + ".a_mesh-issues", // a module's consumer
"$JS.FC." + stream + ".x",
"$JS.API.DIRECT.GET.KV_mesh-controller_conditions", // another bucket, directly
"$JS.API.STREAM.INFO.EVENTS", // the events stream
"$JS.API.INFO", // the account
"mesh.mod.mesh-issues.event.opened", // claiming the tracker said something
"mesh.mod.mesh-issues.tool.open", // opening an issue
"mesh.seat.issue-tracker.tool.open", // through the seat
"mesh.seat.issue-tracker.tool.open.novox", // on one machine
"mesh.seat.mesh-controller.tool.status", // the controller's verbs
"mesh.seat.mesh-controller.event.plan-moved",
"$SRV.PING",
"_INBOX.controller.x",