Update License in File Headers

[novacoin.git] / src / keystore.h

diff --git a/src/keystore.h b/src/keystore.h
index 1f2c6ae..3f1f0ce 100644 (file)
--- a/src/keystore.h
+++ b/src/keystore.h
@@ -1,58 +1,107 @@
 // Copyright (c) 2009-2010 Satoshi Nakamoto
-// Copyright (c) 2011 The Bitcoin developers
+// Copyright (c) 2009-2012 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.
+// file COPYING or http://www.opensource.org/licenses/mit-license.php.
 #ifndef BITCOIN_KEYSTORE_H
 #define BITCOIN_KEYSTORE_H
 
 #include "crypter.h"
+#include "util.h"
+#include "base58.h"
 
+class CScript;
+
+/** A virtual base class for key stores */
 class CKeyStore
 {
 protected:
     mutable CCriticalSection cs_KeyStore;
 
 public:
+    virtual ~CKeyStore() {}
+
+    // 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 void GetKeys(std::set<CBitcoinAddress> &setAddress) const =0;
     virtual bool GetPubKey(const CBitcoinAddress &address, std::vector<unsigned char>& vchPubKeyOut) const;
-    virtual std::vector<unsigned char> GenerateNewKey();
+
+    // Support for BIP 0013 : see https://en.bitcoin.it/wiki/BIP_0013
+    virtual bool AddCScript(const CScript& redeemScript) =0;
+    virtual bool HaveCScript(const uint160 &hash) const =0;
+    virtual bool GetCScript(const uint160 &hash, CScript& redeemScriptOut) const =0;
+
+    virtual bool GetSecret(const CBitcoinAddress &address, CSecret& vchSecret, bool &fCompressed) const
+    {
+        CKey key;
+        if (!GetKey(address, key))
+            return false;
+        vchSecret = key.GetSecret(fCompressed);
+        return true;
+    }
 };
 
-typedef std::map<CBitcoinAddress, CSecret> KeyMap;
+typedef std::map<CBitcoinAddress, std::pair<CSecret, bool> > 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);
     bool HaveKey(const CBitcoinAddress &address) const
     {
         bool result;
-        CRITICAL_BLOCK(cs_KeyStore)
+        {
+            LOCK(cs_KeyStore);
             result = (mapKeys.count(address) > 0);
+        }
         return result;
     }
-    bool GetKey(const CBitcoinAddress &address, CKey& keyOut) const
+    void GetKeys(std::set<CBitcoinAddress> &setAddress) const
+    {
+        setAddress.clear();
+        {
+            LOCK(cs_KeyStore);
+            KeyMap::const_iterator mi = mapKeys.begin();
+            while (mi != mapKeys.end())
+            {
+                setAddress.insert((*mi).first);
+                mi++;
+            }
+        }
+    }
+    bool GetKey(const CBitcoinAddress &address, CKey &keyOut) const
     {
-        CRITICAL_BLOCK(cs_KeyStore)
         {
+            LOCK(cs_KeyStore);
             KeyMap::const_iterator mi = mapKeys.find(address);
             if (mi != mapKeys.end())
             {
-                keyOut.SetSecret((*mi).second);
+                keyOut.Reset();
+                keyOut.SetSecret((*mi).second.first, (*mi).second.second);
                 return true;
             }
         }
         return false;
     }
+    virtual bool AddCScript(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:
@@ -87,8 +136,10 @@ public:
         if (!IsCrypted())
             return false;
         bool result;
-        CRITICAL_BLOCK(cs_KeyStore)
+        {
+            LOCK(cs_KeyStore);
             result = vMasterKey.empty();
+        }
         return result;
     }
 
@@ -97,19 +148,20 @@ public:
         if (!SetCrypted())
             return false;
 
-        CRITICAL_BLOCK(cs_KeyStore)
+        {
+            LOCK(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)
         {
+            LOCK(cs_KeyStore);
             if (!IsCrypted())
                 return CBasicKeyStore::HaveKey(address);
             return mapCryptedKeys.count(address) > 0;
@@ -118,6 +170,21 @@ public:
     }
     bool GetKey(const CBitcoinAddress &address, CKey& keyOut) 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