Add signevent method

go.mod

@@ -131,4 +131,4 @@ require (
 	gopkg.in/yaml.v3 v3.0.1 // indirect
 )
 
-replace fiatjaf.com/nostr => gitea.coracle.social/Coracle/nostrlib v0.0.0-20260622165044-a525b660543d
+replace fiatjaf.com/nostr => gitea.coracle.social/Coracle/nostrlib v0.0.0-20260623001341-fa7d25a59b3d

go.sum

@@ -10,8 +10,8 @@ dario.cat/mergo v1.0.0 h1:AGCNq9Evsj31mOgNPcLyXc+4PNABt905YmuqPYYpBWk=
 dario.cat/mergo v1.0.0/go.mod h1:uNxQE+84aUszobStD9th8a29P2fMDhsBdgRYvZOxGmk=
 fiatjaf.com/lib v0.3.7 h1:mXZOn7NrUcjSdy4oNvwQyAmes7Ueb+Zr5hjqMIe2dxI=
 fiatjaf.com/lib v0.3.7/go.mod h1:UlHaZvPHj25PtKLh9GjZkUHRmQ2xZ8Jkoa4VRaLeeQ8=
-gitea.coracle.social/Coracle/nostrlib v0.0.0-20260622165044-a525b660543d h1:WAtkiBuX8fZSSjerUxueHCFwuWGacEFWkm17fiTb0iU=
+gitea.coracle.social/Coracle/nostrlib v0.0.0-20260623001341-fa7d25a59b3d h1:Ws4dqvn6Fou5DvrdrrctHfbXgENPpa+QBXXRb95P3Zw=
-gitea.coracle.social/Coracle/nostrlib v0.0.0-20260622165044-a525b660543d/go.mod h1:b1EIUDnd133Ie8Pg8O/biaKdFyCMz28aD4n64g1GqvM=
+gitea.coracle.social/Coracle/nostrlib v0.0.0-20260623001341-fa7d25a59b3d/go.mod h1:b1EIUDnd133Ie8Pg8O/biaKdFyCMz28aD4n64g1GqvM=
 github.com/Azure/go-ansiterm v0.0.0-20230124172434-306776ec8161 h1:L/gRVlceqvL25UVaW/CKtUDjefjrs0SPonmDGUVOYP0=
 github.com/Azure/go-ansiterm v0.0.0-20230124172434-306776ec8161/go.mod h1:xomTg63KZ2rFqZQzSB4Vz2SUXa1BpHTVz9L5PTmPC4E=
 github.com/BurntSushi/toml v1.5.0 h1:W5quZX/G/csjUnuI8SUYlsHs9M38FC7znL0lIO+DvMg=

zooid/management.go

@@ -435,6 +435,36 @@ func (m *ManagementStore) removeRoleFromMembers(roleID string) error {
 	return m.Events.SignAndStoreEvent(&membersEvent, true)
 }
 
+// Signing
+
+// SignEvent signs an event template with the relay's identity key on an admin's behalf, then
+// stores and broadcasts it before returning the signed event. Only kind 30078 (application-specific
+// data) is supported for now; every other kind is rejected outright.
+func (m *ManagementStore) SignEvent(kind nostr.Kind, createdAt nostr.Timestamp, tags nostr.Tags, content string) (nostr.Event, error) {
+	if kind != nostr.KindApplicationSpecificData {
+		return nostr.Event{}, errors.New("kind not allowed")
+	}
+
+	// A missing created_at would otherwise default to the epoch, which is almost never what
+	// the caller intends, so fall back to the current time.
+	if createdAt == 0 {
+		createdAt = nostr.Now()
+	}
+
+	event := nostr.Event{
+		Kind:      kind,
+		CreatedAt: createdAt,
+		Tags:      tags,
+		Content:   content,
+	}
+
+	if err := m.Events.SignAndStoreEvent(&event, true); err != nil {
+		return nostr.Event{}, err
+	}
+
+	return event, nil
+}
+
 // Banning
 
 func (m *ManagementStore) BanPubkey(pubkey nostr.PubKey, reason string) error {
@@ -610,4 +640,8 @@ func (m *ManagementStore) Enable(instance *Instance) {
 	instance.Relay.ManagementAPI.UnassignRole = func(ctx context.Context, pubkey nostr.PubKey, roleID string) error {
 		return m.UnassignRole(pubkey, roleID)
 	}
+
+	instance.Relay.ManagementAPI.SignEvent = func(ctx context.Context, kind nostr.Kind, createdAt nostr.Timestamp, tags nostr.Tags, content string) (nostr.Event, error) {
+		return m.SignEvent(kind, createdAt, tags, content)
+	}
 }

zooid/management_test.go

@@ -438,6 +438,47 @@ func TestManagementStore_DeleteRole_BroadcastsDeletion(t *testing.T) {
 	}
 }
 
+func TestManagementStore_SignEvent_AllowedKind(t *testing.T) {
+	mgmt := createTestManagementStore()
+
+	tags := nostr.Tags{nostr.Tag{"d", "zooid/test"}}
+
+	event, err := mgmt.SignEvent(nostr.KindApplicationSpecificData, 0, tags, "hello")
+	if err != nil {
+		t.Fatalf("SignEvent() error = %v", err)
+	}
+
+	if event.PubKey != mgmt.Config.GetSelf() {
+		t.Errorf("SignEvent() signed with %s, want relay key %s", event.PubKey, mgmt.Config.GetSelf())
+	}
+
+	if !event.VerifySignature() {
+		t.Error("SignEvent() produced an invalid signature")
+	}
+
+	// A zero created_at must be replaced with the current time.
+	if event.CreatedAt == 0 {
+		t.Error("SignEvent() should default a missing created_at to the current time")
+	}
+
+	// SignEvent must not persist the event, only return it.
+	filter := nostr.Filter{Kinds: []nostr.Kind{nostr.KindApplicationSpecificData}, Tags: nostr.TagMap{"d": []string{"zooid/test"}}}
+
+	for stored := range mgmt.Events.QueryEvents(filter, 1) {
+		if stored.ID == event.ID {
+			t.Error("SignEvent() should not store the signed event")
+		}
+	}
+}
+
+func TestManagementStore_SignEvent_RejectsOtherKinds(t *testing.T) {
+	mgmt := createTestManagementStore()
+
+	if _, err := mgmt.SignEvent(nostr.KindTextNote, 0, nil, ""); err == nil || err.Error() != "kind not allowed" {
+		t.Errorf("SignEvent() error = %v, want \"kind not allowed\"", err)
+	}
+}
+
 func TestManagementStore_PubkeyIsBanned_NotBanned(t *testing.T) {
 	mgmt := createTestManagementStore()