Use block times for 'hard' OP_EVAL switchover, and refactored EvalScript

[novacoin.git] / src / keystore.h

diff --git a/src/keystore.h b/src/keystore.h
index d1e4985..669bf90 100644 (file)
--- a/src/keystore.h
+++ b/src/keystore.h
@@ -6,26 +6,58 @@
 #define BITCOIN_KEYSTORE_H
 
 #include "crypter.h"
+#include "script.h"
 
+// A virtual base class for key stores
 class CKeyStore
 {
 protected:
     mutable CCriticalSection cs_KeyStore;
 
 public:
+    // Add a key to the store.
     virtual bool AddKey(const CKey& key) =0;
+
+    // Check whether a key corresponding to a given address is present in the store.
     virtual bool HaveKey(const CBitcoinAddress &address) const =0;
-    virtual bool GetKey(const CBitcoinAddress &address, CKey& keyOut) const =0;
+    virtual bool GetKey(const CBitcoinAddress &address, CKey& keyOut) const 
+    {
+        CSecret vchSecret;
+        if (!GetSecret(address, vchSecret))
+            return false;
+        if (!keyOut.SetSecret(vchSecret))
+            return false;
+        return true;
+    }
+    virtual void GetKeys(std::set<CBitcoinAddress> &setAddress) const =0;
     virtual bool GetPubKey(const CBitcoinAddress &address, std::vector<unsigned char>& vchPubKeyOut) const;
+
+    // Support for BIP 0013 : see https://en.bitcoin.it/wiki/BIP_0013
+    virtual bool AddCScript(const uint160 &hash, const CScript& redeemScript) =0;
+    virtual bool HaveCScript(const uint160 &hash) const =0;
+    virtual bool GetCScript(const uint160 &hash, CScript& redeemScriptOut) const =0;
+
+    // Generate a new key, and add it to the store
     virtual std::vector<unsigned char> GenerateNewKey();
+    virtual bool GetSecret(const CBitcoinAddress &address, CSecret& vchSecret) const
+    {
+        CKey key;
+        if (!GetKey(address, key))
+            return false;
+        vchSecret = key.GetSecret();
+        return true;
+    }
 };
 
 typedef std::map<CBitcoinAddress, CSecret> KeyMap;
+typedef std::map<uint160, CScript > ScriptMap;
 
+// Basic key store, that keeps keys in an address->secret map
 class CBasicKeyStore : public CKeyStore
 {
 protected:
     KeyMap mapKeys;
+    ScriptMap mapScripts;
 
 public:
     bool AddKey(const CKey& key);
@@ -36,23 +68,41 @@ public:
             result = (mapKeys.count(address) > 0);
         return result;
     }
-    bool GetKey(const CBitcoinAddress &address, CKey& keyOut) const
+    void GetKeys(std::set<CBitcoinAddress> &setAddress) const
+    {
+        setAddress.clear();
+        CRITICAL_BLOCK(cs_KeyStore)
+        {
+            KeyMap::const_iterator mi = mapKeys.begin();
+            while (mi != mapKeys.end())
+            {
+                setAddress.insert((*mi).first);
+                mi++;
+            }
+        }
+    }
+    bool GetSecret(const CBitcoinAddress &address, CSecret &vchSecret) const
     {
         CRITICAL_BLOCK(cs_KeyStore)
         {
             KeyMap::const_iterator mi = mapKeys.find(address);
             if (mi != mapKeys.end())
             {
-                keyOut.SetSecret((*mi).second);
+                vchSecret = (*mi).second;
                 return true;
             }
         }
         return false;
     }
+    virtual bool AddCScript(const uint160 &hash, const CScript& redeemScript);
+    virtual bool HaveCScript(const uint160 &hash) const;
+    virtual bool GetCScript(const uint160 &hash, CScript& redeemScriptOut) const;
 };
 
 typedef std::map<CBitcoinAddress, std::pair<std::vector<unsigned char>, std::vector<unsigned char> > > CryptedKeyMap;
 
+// Keystore which keeps the private keys encrypted
+// It derives from the basic key store, which is used if no encryption is active.
 class CCryptoKeyStore : public CBasicKeyStore
 {
 private:
@@ -65,15 +115,7 @@ private:
     bool fUseCrypto;
 
 protected:
-    bool SetCrypted()
-    {
-        if (fUseCrypto)
-            return true;
-        if (!mapKeys.empty())
-            return false;
-        fUseCrypto = true;
-        return true;
-    }
+    bool SetCrypted();
 
     // will encrypt previously unencrypted keys
     bool EncryptKeys(CKeyingMaterial& vMasterKeyIn);
@@ -122,9 +164,25 @@ public:
                 return CBasicKeyStore::HaveKey(address);
             return mapCryptedKeys.count(address) > 0;
         }
+        return false;
     }
-    bool GetKey(const CBitcoinAddress &address, CKey& keyOut) const;
+    bool GetSecret(const CBitcoinAddress &address, CSecret& vchSecret) const;
     bool GetPubKey(const CBitcoinAddress &address, std::vector<unsigned char>& vchPubKeyOut) const;
+    void GetKeys(std::set<CBitcoinAddress> &setAddress) const
+    {
+        if (!IsCrypted())
+        {
+            CBasicKeyStore::GetKeys(setAddress);
+            return;
+        }
+        setAddress.clear();
+        CryptedKeyMap::const_iterator mi = mapCryptedKeys.begin();
+        while (mi != mapCryptedKeys.end())
+        {
+            setAddress.insert((*mi).first);
+            mi++;
+        }
+    }
 };
 
 #endif