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bitcoin/src/keystore.cpp

115 lines
2.9 KiB

// Copyright (c) 2009-2010 Satoshi Nakamoto
// Copyright (c) 2009-2015 The Bitcoin Core developers
// Distributed under the MIT software license, see the accompanying
// file COPYING or http://www.opensource.org/licenses/mit-license.php.
#include "keystore.h"
#include "key.h"
#include "pubkey.h"
#include "util.h"
#include <boost/foreach.hpp>
bool CKeyStore::AddKey(const CKey &key) {
return AddKeyPubKey(key, key.GetPubKey());
}
bool CBasicKeyStore::GetPubKey(const CKeyID &address, CPubKey &vchPubKeyOut) const
{
CKey key;
if (!GetKey(address, key)) {
WatchKeyMap::const_iterator it = mapWatchKeys.find(address);
if (it != mapWatchKeys.end()) {
vchPubKeyOut = it->second;
return true;
}
return false;
}
vchPubKeyOut = key.GetPubKey();
return true;
}
bool CBasicKeyStore::AddKeyPubKey(const CKey& key, const CPubKey &pubkey)
{
LOCK(cs_KeyStore);
mapKeys[pubkey.GetID()] = key;
return true;
}
bool CBasicKeyStore::AddCScript(const CScript& redeemScript)
{
if (redeemScript.size() > MAX_SCRIPT_ELEMENT_SIZE)
return error("CBasicKeyStore::AddCScript(): redeemScripts > %i bytes are invalid", MAX_SCRIPT_ELEMENT_SIZE);
LOCK(cs_KeyStore);
mapScripts[CScriptID(redeemScript)] = redeemScript;
return true;
}
bool CBasicKeyStore::HaveCScript(const CScriptID& hash) const
{
LOCK(cs_KeyStore);
return mapScripts.count(hash) > 0;
}
bool CBasicKeyStore::GetCScript(const CScriptID &hash, CScript& redeemScriptOut) const
{
LOCK(cs_KeyStore);
ScriptMap::const_iterator mi = mapScripts.find(hash);
if (mi != mapScripts.end())
{
redeemScriptOut = (*mi).second;
return true;
}
return false;
}
static bool ExtractPubKey(const CScript &dest, CPubKey& pubKeyOut)
{
//TODO: Use Solver to extract this?
CScript::const_iterator pc = dest.begin();
opcodetype opcode;
std::vector<unsigned char> vch;
if (!dest.GetOp(pc, opcode, vch) || vch.size() < 33 || vch.size() > 65)
return false;
pubKeyOut = CPubKey(vch);
if (!pubKeyOut.IsFullyValid())
return false;
if (!dest.GetOp(pc, opcode, vch) || opcode != OP_CHECKSIG || dest.GetOp(pc, opcode, vch))
return false;
return true;
}
bool CBasicKeyStore::AddWatchOnly(const CScript &dest)
{
LOCK(cs_KeyStore);
setWatchOnly.insert(dest);
CPubKey pubKey;
if (ExtractPubKey(dest, pubKey))
mapWatchKeys[pubKey.GetID()] = pubKey;
return true;
}
bool CBasicKeyStore::RemoveWatchOnly(const CScript &dest)
{
LOCK(cs_KeyStore);
setWatchOnly.erase(dest);
CPubKey pubKey;
if (ExtractPubKey(dest, pubKey))
mapWatchKeys.erase(pubKey.GetID());
return true;
}
bool CBasicKeyStore::HaveWatchOnly(const CScript &dest) const
{
LOCK(cs_KeyStore);
return setWatchOnly.count(dest) > 0;
}
bool CBasicKeyStore::HaveWatchOnly() const
{
LOCK(cs_KeyStore);
return (!setWatchOnly.empty());
}