Files
CosmicClash/server/workload/signed_token_test.go
T
Josh Creek d588898f5d fix(multiplayer): bind signed workload tokens to allocation_id only
The just-landed signed workload token embedded (allocation_id, match_id,
server_id) as claims. That doesn't actually work for its intended delivery
channel: the token is meant to be requested as a GameServerAllocation
annotation in the SAME request that asks Agones to pick a server, so at mint
time the allocator knows allocation_id (it generates it) but not yet which
server_id Agones will return -- server_id only exists in Agones's response,
after the annotation request has already been sent. Embedding it was simply
not possible for the real caller this was built for; only the (allocator ->
signed_token) unit tests and hand-constructed integration tests happened to
supply it directly, masking the gap.

Fixes it by having the token bind only allocation_id (the one identifier
actually known at mint time) plus expiry. match_id/server_id are resolved at
verify time from the durable allocations table via the new
store.AllocationBindingByAllocationID, keyed by allocation_id -- which the
allocator already records immediately after Agones responds. This is
strictly stronger, not just a workaround: a caller can no longer claim any
match/server pairing at all, even one that happens to be internally
consistent -- the binding returned is entirely durable-record-derived.

Verified: server/workload's unit tests updated for the new two-field claim
shape; server/api's Postgres integration suite gains
TestWorkloadVerifierFromSignedTokenNeverTrustsCallerSuppliedBinding (two
distinct real allocations each resolve to their own, and only their own,
match/server pairing) replacing the now-inapplicable mismatched-triple test.
Full `go build ./... && go vet ./... && gofmt -l . && go test ./... -race`
and `go test -tags integration ./... -race` both clean; the api integration
suite re-run 3x clean against a live postgres:17-alpine container.
2026-09-01 14:54:38 +01:00

97 lines
3.2 KiB
Go

package workload
import (
"errors"
"testing"
"time"
)
func TestSignedWorkloadTokenRoundTrips(t *testing.T) {
secret := []byte("test-secret")
now := time.Unix(1_700_000_000, 0).UTC()
token, err := IssueSignedWorkloadToken(secret, "alloc-1", now, time.Minute)
if err != nil {
t.Fatalf("issue: %v", err)
}
claims, err := ParseSignedWorkloadToken(secret, token, now.Add(30*time.Second))
if err != nil {
t.Fatalf("parse: %v", err)
}
if claims.AllocationID != "alloc-1" {
t.Fatalf("unexpected claims: %+v", claims)
}
}
func TestSignedWorkloadTokenRejectsExpiry(t *testing.T) {
secret := []byte("test-secret")
now := time.Unix(1_700_000_000, 0).UTC()
token, err := IssueSignedWorkloadToken(secret, "alloc-1", now, time.Minute)
if err != nil {
t.Fatalf("issue: %v", err)
}
if _, err := ParseSignedWorkloadToken(secret, token, now.Add(61*time.Second)); !errors.Is(err, ErrTokenExpired) {
t.Fatalf("expected ErrTokenExpired, got %v", err)
}
// Boundary: exactly at expiry must also be rejected (Before, not
// Before-or-equal), matching the proposal-expiry read boundary
// convention used elsewhere in this codebase.
if _, err := ParseSignedWorkloadToken(secret, token, now.Add(time.Minute)); !errors.Is(err, ErrTokenExpired) {
t.Fatalf("expected ErrTokenExpired at the boundary, got %v", err)
}
}
func TestSignedWorkloadTokenRejectsTamperedPayload(t *testing.T) {
secret := []byte("test-secret")
now := time.Unix(1_700_000_000, 0).UTC()
token, err := IssueSignedWorkloadToken(secret, "alloc-1", now, time.Minute)
if err != nil {
t.Fatalf("issue: %v", err)
}
tampered := token[:len(token)-4] + "AAAA"
if _, err := ParseSignedWorkloadToken(secret, tampered, now); !errors.Is(err, ErrTokenSignature) && !errors.Is(err, ErrMalformedToken) {
t.Fatalf("expected signature/malformed rejection, got %v", err)
}
}
func TestSignedWorkloadTokenRejectsWrongSecret(t *testing.T) {
now := time.Unix(1_700_000_000, 0).UTC()
token, err := IssueSignedWorkloadToken([]byte("secret-a"), "alloc-1", now, time.Minute)
if err != nil {
t.Fatalf("issue: %v", err)
}
if _, err := ParseSignedWorkloadToken([]byte("secret-b"), token, now); !errors.Is(err, ErrTokenSignature) {
t.Fatalf("expected ErrTokenSignature, got %v", err)
}
}
func TestSignedWorkloadTokenRejectsMalformedInput(t *testing.T) {
secret := []byte("test-secret")
now := time.Unix(1_700_000_000, 0).UTC()
for _, token := range []string{"", "no-dot-here", ".missing-payload", "missing-signature.", "!!!.!!!"} {
if _, err := ParseSignedWorkloadToken(secret, token, now); err == nil {
t.Fatalf("token %q: expected an error, got nil", token)
}
}
}
func TestIssueSignedWorkloadTokenRejectsInvalidInput(t *testing.T) {
now := time.Unix(1_700_000_000, 0).UTC()
cases := []struct {
name string
secret []byte
allocationID string
now time.Time
ttl time.Duration
}{
{"empty secret", nil, "a", now, time.Minute},
{"empty allocation id", []byte("k"), "", now, time.Minute},
{"zero now", []byte("k"), "a", time.Time{}, time.Minute},
{"non-positive ttl", []byte("k"), "a", now, 0},
}
for _, c := range cases {
if _, err := IssueSignedWorkloadToken(c.secret, c.allocationID, c.now, c.ttl); err == nil {
t.Fatalf("%s: expected an error, got nil", c.name)
}
}
}