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90 lines
2.6 KiB
90 lines
2.6 KiB
// Copyright (c) 2009-2010 Satoshi Nakamoto |
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// Copyright (c) 2009-2014 The Bitcoin developers |
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// Distributed under the MIT software license, see the accompanying |
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// file COPYING or http://www.opensource.org/licenses/mit-license.php. |
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#include "wallet_ismine.h" |
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#include "key.h" |
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#include "keystore.h" |
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#include "script/standard.h" |
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#include <boost/foreach.hpp> |
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using namespace std; |
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typedef vector<unsigned char> valtype; |
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unsigned int HaveKeys(const vector<valtype>& pubkeys, const CKeyStore& keystore) |
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{ |
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unsigned int nResult = 0; |
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BOOST_FOREACH(const valtype& pubkey, pubkeys) |
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{ |
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CKeyID keyID = CPubKey(pubkey).GetID(); |
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if (keystore.HaveKey(keyID)) |
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++nResult; |
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} |
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return nResult; |
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} |
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isminetype IsMine(const CKeyStore &keystore, const CTxDestination& dest) |
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{ |
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CScript script = GetScriptForDestination(dest); |
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return IsMine(keystore, script); |
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} |
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isminetype IsMine(const CKeyStore &keystore, const CScript& scriptPubKey) |
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{ |
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vector<valtype> vSolutions; |
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txnouttype whichType; |
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if (!Solver(scriptPubKey, whichType, vSolutions)) { |
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if (keystore.HaveWatchOnly(scriptPubKey)) |
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return ISMINE_WATCH_ONLY; |
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return ISMINE_NO; |
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} |
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CKeyID keyID; |
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switch (whichType) |
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{ |
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case TX_NONSTANDARD: |
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case TX_NULL_DATA: |
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break; |
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case TX_PUBKEY: |
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keyID = CPubKey(vSolutions[0]).GetID(); |
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if (keystore.HaveKey(keyID)) |
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return ISMINE_SPENDABLE; |
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break; |
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case TX_PUBKEYHASH: |
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keyID = CKeyID(uint160(vSolutions[0])); |
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if (keystore.HaveKey(keyID)) |
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return ISMINE_SPENDABLE; |
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break; |
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case TX_SCRIPTHASH: |
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{ |
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CScriptID scriptID = CScriptID(uint160(vSolutions[0])); |
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CScript subscript; |
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if (keystore.GetCScript(scriptID, subscript)) { |
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isminetype ret = IsMine(keystore, subscript); |
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if (ret == ISMINE_SPENDABLE) |
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return ret; |
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} |
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break; |
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} |
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case TX_MULTISIG: |
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{ |
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// Only consider transactions "mine" if we own ALL the |
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// keys involved. multi-signature transactions that are |
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// partially owned (somebody else has a key that can spend |
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// them) enable spend-out-from-under-you attacks, especially |
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// in shared-wallet situations. |
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vector<valtype> keys(vSolutions.begin()+1, vSolutions.begin()+vSolutions.size()-1); |
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if (HaveKeys(keys, keystore) == keys.size()) |
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return ISMINE_SPENDABLE; |
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break; |
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} |
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} |
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if (keystore.HaveWatchOnly(scriptPubKey)) |
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return ISMINE_WATCH_ONLY; |
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return ISMINE_NO; |
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}
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