From 96469ee44afb7a31157d1653c172fc11f47d675c Mon Sep 17 00:00:00 2001
From: dec05eba <dec05eba@protonmail.com>
Date: Wed, 25 Apr 2018 05:29:43 +0200
Subject: Store opendht identity in storage file (cached)

---
 src/Database.cpp        |  4 +---
 src/DatabaseStorage.cpp | 35 ++++++++++++++++++++++++++++++++++-
 2 files changed, 35 insertions(+), 4 deletions(-)

(limited to 'src')

diff --git a/src/Database.cpp b/src/Database.cpp
index 226aa05..383cc18 100644
--- a/src/Database.cpp
+++ b/src/Database.cpp
@@ -89,8 +89,6 @@ namespace odhtdb
         onAddUserCallbackFunc(nullptr),
         databaseStorage(storageDir)
     {
-        // TODO: Cache this in storage. It takes pretty long time to generate new identity
-        auto identity = dht::crypto::generateIdentity();
         node.run(port , {
             /*.dht_config = */{
                 /*.node_config = */{
@@ -99,7 +97,7 @@ namespace odhtdb
                     /*.is_bootstrap = */false,
                     /*.maintain_storage*/false
                 },
-                /*.id = */identity
+                /*.id = */databaseStorage.getIdentity()
             },
             /*.threaded = */true,
             /*.proxy_server = */"",
diff --git a/src/DatabaseStorage.cpp b/src/DatabaseStorage.cpp
index bd98b8b..c507f02 100644
--- a/src/DatabaseStorage.cpp
+++ b/src/DatabaseStorage.cpp
@@ -24,6 +24,7 @@ namespace odhtdb
     };
     
     const u64 QUARANTINE_STORAGE_TIME_MICROSECONDS = 60 * 1.0e6;
+    const u16 STORAGE_VERSION = 1;
     
     DatabaseStorageObject::DatabaseStorageObject(DataView &_data, u64 _timestamp, const Signature::PublicKey &_creatorPublicKey) : 
         data(_data), createdTimestamp(_timestamp), creatorPublicKey(_creatorPublicKey)
@@ -62,9 +63,21 @@ namespace odhtdb
             if(!metadataLoaded)
             {
                 sibs::SafeSerializer metadataSerializer;
-                metadataSerializer.add((u16)0); // Storage version
+                metadataSerializer.add(STORAGE_VERSION);
                 randombytes_buf(passwordSalt, PASSWORD_SALT_LEN);
                 metadataSerializer.add(passwordSalt, PASSWORD_SALT_LEN);
+                
+                //string passwordSaltStr((const char*)passwordSalt, PASSWORD_SALT_LEN);
+                identity = dht::crypto::generateIdentity();
+                dht::Blob privateKeyData = identity.first->serialize();
+                metadataSerializer.add((u16)privateKeyData.size());
+                metadataSerializer.add(privateKeyData.data(), privateKeyData.size());
+
+                dht::Blob certificateData;
+                identity.second->pack(certificateData);
+                metadataSerializer.add((u16)certificateData.size());
+                metadataSerializer.add(certificateData.data(), certificateData.size());
+                
                 fileAppend(metadataFilePath, { metadataSerializer.getBuffer().data(), metadataSerializer.getBuffer().size() });
             }
         }
@@ -288,9 +301,24 @@ namespace odhtdb
         sibs::SafeDeserializer deserializer((u8*)metadataFileContent.data, metadataFileContent.size);
         
         u16 storageVersion = deserializer.extract<u16>();
+        if(storageVersion != STORAGE_VERSION)
+            throw std::runtime_error("Wrong storage version!");
         
         u8 passwordSalt[PASSWORD_SALT_LEN];
         deserializer.extract(passwordSalt, PASSWORD_SALT_LEN);
+        //string passwordSaltStr((const char*)passwordSalt, PASSWORD_SALT_LEN);
+        
+        u16 privateKeySize = deserializer.extract<u16>();
+        dht::Blob privateKeyRaw;
+        privateKeyRaw.resize(privateKeySize);
+        deserializer.extract(&privateKeyRaw[0], privateKeySize);
+        identity.first = make_shared<dht::crypto::PrivateKey>(privateKeyRaw);
+        
+        u16 certificateSize = deserializer.extract<u16>();
+        dht::Blob certificateRaw;
+        certificateRaw.resize(certificateSize);
+        deserializer.extract(&certificateRaw[0], certificateSize);
+        identity.second = make_shared<dht::crypto::Certificate>(certificateRaw);
         
         assert(deserializer.empty());
     }
@@ -524,6 +552,11 @@ namespace odhtdb
         return nullptr;
     }
     
+    const dht::crypto::Identity& DatabaseStorage::getIdentity() const
+    {
+        return identity;
+    }
+    
     void DatabaseStorage::update()
     {
         // TODO: Modify this to iterate backwards. Because list is sorted in order of timestamp, we can remove data in range
-- 
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