1 files changed, 58 insertions, 0 deletions
diff --git a/swarm/api/inspector.go b/swarm/api/inspector.go
new file mode 100644
index 000000000..6706b32e6
--- /dev/null
+++ b/swarm/api/inspector.go
@@ -0,0 +1,58 @@
+// Copyright 2019 The go-ethereum Authors
+// This file is part of the go-ethereum library.
+//
+// The go-ethereum library is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Lesser General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// The go-ethereum library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU Lesser General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser General Public License
+// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
+
+package api
+
+import (
+	"context"
+
+	"github.com/ethereum/go-ethereum/swarm/network"
+	"github.com/ethereum/go-ethereum/swarm/storage"
+)
+
+type Inspector struct {
+	api      *API
+	hive     *network.Hive
+	netStore *storage.NetStore
+}
+
+func NewInspector(api *API, hive *network.Hive, netStore *storage.NetStore) *Inspector {
+	return &Inspector{api, hive, netStore}
+}
+
+// Hive prints the kademlia table
+func (inspector *Inspector) Hive() string {
+	return inspector.hive.String()
+}
+
+type HasInfo struct {
+	Addr string `json:"address"`
+	Has  bool   `json:"has"`
+}
+
+// Has checks whether each chunk address is present in the underlying datastore,
+// the bool in the returned structs indicates if the underlying datastore has
+// the chunk stored with the given address (true), or not (false)
+func (inspector *Inspector) Has(chunkAddresses []storage.Address) []HasInfo {
+	results := make([]HasInfo, 0)
+	for _, addr := range chunkAddresses {
+		res := HasInfo{}
+		res.Addr = addr.String()
+		res.Has = inspector.netStore.Has(context.Background(), addr)
+		results = append(results, res)
+	}
+	return results
+}