Cancel local streams when signed membership is invalidated

src/chat/member_sync.c

@@ -888,6 +888,7 @@ int member_sync_verify_and_purge(struct UTUN_INSTANCE* inst, const char* ch_id)
             topo_node_sqlite_member_del(db, ch_id, nid);
             radio_forget_member_mute(inst, strtoull(ch_id, NULL, 10), nid);
             merkle_sync_recompute_path(inst, MT_DATA_MEMBERS, ch_id, nid);
+            _fire_props_changed(inst, nid, NULL, ch_id);
             /* пассивное удаление: если узел подключён напрямую — убрать из CHAT-группы */
             if (inst->topo_groups) {
                 uint64_t gid = strtoull(ch_id, NULL, 10);

src/stream/stream.c

@@ -224,14 +224,20 @@ static void member_changed(uint64_t node_id, const char *tags, const char *chann
     struct stream_service *service = arg;
     if (service->stopping || !service->sessions) return;
     for (struct stream_session *s = service->sessions; s; s = s->next) {
-        if (s->closing || s->source || s->descriptor.source_node_id != node_id) continue;
+        int own = node_id == service->inst->node_id;
+        if (s->closing || (!own && (s->source || s->descriptor.source_node_id != node_id))) continue;
         struct TOPO_GROUP *group = stream_group(service->inst, s->descriptor.group_id);
         if (!group || !channel || strcmp(group->channel_id, channel)) continue;
         struct stream_member_state state; uint8_t key[32];
         int result = stream_member_load(service->inst, group->group_id, node_id, &state, key);
         if (result == STREAM_ERR_NOT_MEMBER || result == STREAM_ERR_SIGNATURE || result == STREAM_ERR_FORMAT) {
             s->invalidated = 1; s->reason = STREAM_CLOSE_MEMBER;
-        } else if (result == STREAM_OK && (memcmp(key, s->public_key, 32)
+            DEBUG_WARN(DEBUG_CATEGORY_STREAM, "stream membership invalidated group=%llx member=%llx own=%d result=%d",
+                       (unsigned long long)group->group_id, (unsigned long long)node_id, own, result);
+        } else if (own && result == STREAM_OK && memcmp(key, service->inst->my_ed25519_pubkey, 32)) {
+            s->invalidated = 1; s->reason = STREAM_CLOSE_MEMBER;
+            DEBUG_WARN(DEBUG_CATEGORY_STREAM, "stream own member key changed group=%llx", (unsigned long long)group->group_id);
+        } else if (!own && result == STREAM_OK && (memcmp(key, s->public_key, 32)
                    || (state.published && (state.source.source_epoch != s->descriptor.source_epoch
                        || state.source.n != s->descriptor.n || state.source.r != s->descriptor.r
                        || state.source.block_size != s->descriptor.block_size)))) {