From 8a030b5e77031c8b3347170d28758097bca1f15e Mon Sep 17 00:00:00 2001
From: dec05eba <dec05eba@protonmail.com>
Date: Tue, 15 May 2018 06:06:02 +0200
Subject: Store known remote nodes and connect to them next time

---
 include/odhtdb/Database.hpp        | 2 ++
 include/odhtdb/DatabaseStorage.hpp | 8 ++++++++
 include/odhtdb/FileUtils.hpp       | 4 ++++
 3 files changed, 14 insertions(+)

(limited to 'include')

diff --git a/include/odhtdb/Database.hpp b/include/odhtdb/Database.hpp
index 11a6cd4..5ebe9c5 100644
--- a/include/odhtdb/Database.hpp
+++ b/include/odhtdb/Database.hpp
@@ -187,5 +187,7 @@ namespace odhtdb
         std::function<void(const DatabaseAddNodeRequest&)> onAddNodeCallbackFunc;
         std::function<void(const DatabaseAddUserRequest&)> onAddUserCallbackFunc;
         MapHash<DatabaseSeedInfo> seedInfoMap;
+        std::thread remoteNodesSaveThread;
+        bool shuttingDown;
     };
 }
diff --git a/include/odhtdb/DatabaseStorage.hpp b/include/odhtdb/DatabaseStorage.hpp
index a004619..886412c 100644
--- a/include/odhtdb/DatabaseStorage.hpp
+++ b/include/odhtdb/DatabaseStorage.hpp
@@ -15,6 +15,7 @@
 #include <boost/filesystem/path.hpp>
 #include <sibs/SafeDeserializer.hpp>
 #include <opendht/crypto.h>
+#include <opendht/dhtrunner.h>
 #include <functional>
 
 class sqlite3;
@@ -121,6 +122,9 @@ namespace odhtdb
         std::pair<bool, std::shared_ptr<OwnedMemory>> getNodeDecryptionKey(const Hash &nodeHash);
         void setNodeDecryptionKey(const Hash &nodeHash, const DataView &decryptionKey);
         
+        const std::vector<dht::NodeExport>& getRemoteNodes() const;
+        void setRemoteNodes(const std::vector<dht::NodeExport> &remoteNodes);
+        
         const dht::crypto::Identity& getIdentity() const;
         
         // Update storage state (remove quarantine objects if they are too old, etc)
@@ -131,6 +135,7 @@ namespace odhtdb
         
         void bindCheckError(int sqliteBindResult);
         void loadMetadataFromFile();
+        void loadRemoteNodesFromFile();
         bool decryptNodeData(const Hash &nodeHash, const std::shared_ptr<OwnedMemory> decryptionKey);
         bool decryptNodeData(const Hash &nodeHash, const std::shared_ptr<OwnedMemory> decryptionKey, const Signature::PublicKey *creatorPublicKey, const DataView &adminGroupId, u64 timestamp);
         bool decryptNodeAddData(i64 rowId, const Hash &nodeHash, const Hash &dataHash, u64 timestamp, const Signature::PublicKey *creatorPublicKey, const DataView &encryptedData, const std::shared_ptr<OwnedMemory> decryptionKey);
@@ -168,7 +173,10 @@ namespace odhtdb
         sqlite3_stmt *setNodeAddDataAdditionalDataStmt;
         
         boost::filesystem::path metadataFilePath;
+        boost::filesystem::path remoteNodesFilePath;
+        
         u8 passwordSalt[PASSWORD_SALT_LEN];
         std::pair<std::shared_ptr<dht::crypto::PrivateKey>, std::shared_ptr<dht::crypto::Certificate>> identity;
+        std::vector<dht::NodeExport> remoteNodes;
     };
 }
diff --git a/include/odhtdb/FileUtils.hpp b/include/odhtdb/FileUtils.hpp
index 7bfbe3e..88721ed 100644
--- a/include/odhtdb/FileUtils.hpp
+++ b/include/odhtdb/FileUtils.hpp
@@ -19,4 +19,8 @@ namespace odhtdb
     // Creates file if it doesn't exist.
     // Throws FileException on error
     void fileAppend(const boost::filesystem::path &filepath, const DataView &data);
+    
+    // Creates a file if it doesn'te xist.
+    // Throws FileException on error.
+    void fileOverwrite(const boost::filesystem::path &filepath, const DataView &data);
 }
-- 
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