Fix rpc-hanging deadlocks

[novacoin.git] / src / keystore.h

diff --git a/src/keystore.h b/src/keystore.h
index 2f37ec5..d1e4985 100644 (file)
--- a/src/keystore.h
+++ b/src/keystore.h
@@ -1,10 +1,130 @@
-// Copyright (c) 2009-2011 Satoshi Nakamoto & Bitcoin developers
+// Copyright (c) 2009-2010 Satoshi Nakamoto
+// Copyright (c) 2011 The Bitcoin developers
 // Distributed under the MIT/X11 software license, see the accompanying
 // file license.txt or http://www.opensource.org/licenses/mit-license.php.
 #ifndef BITCOIN_KEYSTORE_H
 #define BITCOIN_KEYSTORE_H
 
-bool AddKey(const CKey& key);
-std::vector<unsigned char> GenerateNewKey();
+#include "crypter.h"
+
+class CKeyStore
+{
+protected:
+    mutable CCriticalSection cs_KeyStore;
+
+public:
+    virtual bool AddKey(const CKey& key) =0;
+    virtual bool HaveKey(const CBitcoinAddress &address) const =0;
+    virtual bool GetKey(const CBitcoinAddress &address, CKey& keyOut) const =0;
+    virtual bool GetPubKey(const CBitcoinAddress &address, std::vector<unsigned char>& vchPubKeyOut) const;
+    virtual std::vector<unsigned char> GenerateNewKey();
+};
+
+typedef std::map<CBitcoinAddress, CSecret> KeyMap;
+
+class CBasicKeyStore : public CKeyStore
+{
+protected:
+    KeyMap mapKeys;
+
+public:
+    bool AddKey(const CKey& key);
+    bool HaveKey(const CBitcoinAddress &address) const
+    {
+        bool result;
+        CRITICAL_BLOCK(cs_KeyStore)
+            result = (mapKeys.count(address) > 0);
+        return result;
+    }
+    bool GetKey(const CBitcoinAddress &address, CKey& keyOut) const
+    {
+        CRITICAL_BLOCK(cs_KeyStore)
+        {
+            KeyMap::const_iterator mi = mapKeys.find(address);
+            if (mi != mapKeys.end())
+            {
+                keyOut.SetSecret((*mi).second);
+                return true;
+            }
+        }
+        return false;
+    }
+};
+
+typedef std::map<CBitcoinAddress, std::pair<std::vector<unsigned char>, std::vector<unsigned char> > > CryptedKeyMap;
+
+class CCryptoKeyStore : public CBasicKeyStore
+{
+private:
+    CryptedKeyMap mapCryptedKeys;
+
+    CKeyingMaterial vMasterKey;
+
+    // if fUseCrypto is true, mapKeys must be empty
+    // if fUseCrypto is false, vMasterKey must be empty
+    bool fUseCrypto;
+
+protected:
+    bool SetCrypted()
+    {
+        if (fUseCrypto)
+            return true;
+        if (!mapKeys.empty())
+            return false;
+        fUseCrypto = true;
+        return true;
+    }
+
+    // will encrypt previously unencrypted keys
+    bool EncryptKeys(CKeyingMaterial& vMasterKeyIn);
+
+    bool Unlock(const CKeyingMaterial& vMasterKeyIn);
+
+public:
+    CCryptoKeyStore() : fUseCrypto(false)
+    {
+    }
+
+    bool IsCrypted() const
+    {
+        return fUseCrypto;
+    }
+
+    bool IsLocked() const
+    {
+        if (!IsCrypted())
+            return false;
+        bool result;
+        CRITICAL_BLOCK(cs_KeyStore)
+            result = vMasterKey.empty();
+        return result;
+    }
+
+    bool Lock()
+    {
+        if (!SetCrypted())
+            return false;
+
+        CRITICAL_BLOCK(cs_KeyStore)
+            vMasterKey.clear();
+
+        return true;
+    }
+
+    virtual bool AddCryptedKey(const std::vector<unsigned char> &vchPubKey, const std::vector<unsigned char> &vchCryptedSecret);
+    std::vector<unsigned char> GenerateNewKey();
+    bool AddKey(const CKey& key);
+    bool HaveKey(const CBitcoinAddress &address) const
+    {
+        CRITICAL_BLOCK(cs_KeyStore)
+        {
+            if (!IsCrypted())
+                return CBasicKeyStore::HaveKey(address);
+            return mapCryptedKeys.count(address) > 0;
+        }
+    }
+    bool GetKey(const CBitcoinAddress &address, CKey& keyOut) const;
+    bool GetPubKey(const CBitcoinAddress &address, std::vector<unsigned char>& vchPubKeyOut) const;
+};
 
 #endif