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Split up key and script metadata for better type safety

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Suggested by Matt Corallo <git@bluematt.me>
https://github.com/bitcoin/bitcoin/pull/11403#discussion_r155599383

Combining the maps was probably never a good arrangement but is more
problematic now in presence of WitnessV0ScriptHash and WitnessV0KeyHash types.
This commit is contained in:
Russell Yanofsky 2017-12-08 12:50:46 -05:00
parent 4ef4dfebbc
commit 9c8eca7704
4 changed files with 48 additions and 34 deletions
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27
src/rpc/misc.cpp
View file

@ -187,17 +187,24 @@ UniValue validateaddress(const JSONRPCRequest& request)
ret.push_back(Pair("account", pwallet->mapAddressBook[dest].name)); ret.push_back(Pair("account", pwallet->mapAddressBook[dest].name));
} }
if (pwallet) { if (pwallet) {
const auto& meta = pwallet->mapKeyMetadata; const CKeyMetadata* meta = nullptr;
const CKeyID *keyID = boost::get<CKeyID>(&dest); if (const CKeyID* key_id = boost::get<CKeyID>(&dest)) {
auto it = keyID ? meta.find(*keyID) : meta.end(); auto it = pwallet->mapKeyMetadata.find(*key_id);
if (it == meta.end()) { if (it != pwallet->mapKeyMetadata.end()) {
it = meta.find(CScriptID(scriptPubKey)); meta = &it->second;
}
} }
if (it != meta.end()) { if (!meta) {
ret.push_back(Pair("timestamp", it->second.nCreateTime)); auto it = pwallet->m_script_metadata.find(CScriptID(scriptPubKey));
if (!it->second.hdKeypath.empty()) { if (it != pwallet->m_script_metadata.end()) {
ret.push_back(Pair("hdkeypath", it->second.hdKeypath)); meta = &it->second;
ret.push_back(Pair("hdmasterkeyid", it->second.hdMasterKeyID.GetHex())); }
}
if (meta) {
ret.push_back(Pair("timestamp", meta->nCreateTime));
if (!meta->hdKeypath.empty()) {
ret.push_back(Pair("hdkeypath", meta->hdKeypath));
ret.push_back(Pair("hdmasterkeyid", meta->hdMasterKeyID.GetHex()));
} }
} }
} }

14
src/wallet/wallet.cpp
View file

@ -284,7 +284,7 @@ bool CWallet::AddCryptedKey(const CPubKey &vchPubKey,
} }
} }
bool CWallet::LoadKeyMetadata(const CTxDestination& keyID, const CKeyMetadata &meta) bool CWallet::LoadKeyMetadata(const CKeyID& keyID, const CKeyMetadata &meta)
{ {
AssertLockHeld(cs_wallet); // mapKeyMetadata AssertLockHeld(cs_wallet); // mapKeyMetadata
UpdateTimeFirstKey(meta.nCreateTime); UpdateTimeFirstKey(meta.nCreateTime);
@ -292,6 +292,14 @@ bool CWallet::LoadKeyMetadata(const CTxDestination& keyID, const CKeyMetadata &m
return true; return true;
} }
bool CWallet::LoadScriptMetadata(const CScriptID& script_id, const CKeyMetadata &meta)
{
AssertLockHeld(cs_wallet); // m_script_metadata
UpdateTimeFirstKey(meta.nCreateTime);
m_script_metadata[script_id] = meta;
return true;
}
bool CWallet::LoadCryptedKey(const CPubKey &vchPubKey, const std::vector<unsigned char> &vchCryptedSecret) bool CWallet::LoadCryptedKey(const CPubKey &vchPubKey, const std::vector<unsigned char> &vchCryptedSecret)
{ {
return CCryptoKeyStore::AddCryptedKey(vchPubKey, vchCryptedSecret); return CCryptoKeyStore::AddCryptedKey(vchPubKey, vchCryptedSecret);
@ -340,7 +348,7 @@ bool CWallet::AddWatchOnly(const CScript& dest)
{ {
if (!CCryptoKeyStore::AddWatchOnly(dest)) if (!CCryptoKeyStore::AddWatchOnly(dest))
return false; return false;
const CKeyMetadata& meta = mapKeyMetadata[CScriptID(dest)]; const CKeyMetadata& meta = m_script_metadata[CScriptID(dest)];
UpdateTimeFirstKey(meta.nCreateTime); UpdateTimeFirstKey(meta.nCreateTime);
NotifyWatchonlyChanged(true); NotifyWatchonlyChanged(true);
return CWalletDB(*dbw).WriteWatchOnly(dest, meta); return CWalletDB(*dbw).WriteWatchOnly(dest, meta);
@ -348,7 +356,7 @@ bool CWallet::AddWatchOnly(const CScript& dest)
bool CWallet::AddWatchOnly(const CScript& dest, int64_t nCreateTime) bool CWallet::AddWatchOnly(const CScript& dest, int64_t nCreateTime)
{ {
mapKeyMetadata[CScriptID(dest)].nCreateTime = nCreateTime; m_script_metadata[CScriptID(dest)].nCreateTime = nCreateTime;
return AddWatchOnly(dest); return AddWatchOnly(dest);
} }

11
src/wallet/wallet.h
View file

@ -761,9 +761,11 @@ public:
void LoadKeyPool(int64_t nIndex, const CKeyPool &keypool); void LoadKeyPool(int64_t nIndex, const CKeyPool &keypool);
// Map from Key ID (for regular keys) or Script ID (for watch-only keys) to // Map from Key ID to key metadata.
// key metadata. std::map<CKeyID, CKeyMetadata> mapKeyMetadata;
std::map<CTxDestination, CKeyMetadata> mapKeyMetadata;
// Map from Script ID to key metadata (for watch-only keys).
std::map<CScriptID, CKeyMetadata> m_script_metadata;
typedef std::map<unsigned int, CMasterKey> MasterKeyMap; typedef std::map<unsigned int, CMasterKey> MasterKeyMap;
MasterKeyMap mapMasterKeys; MasterKeyMap mapMasterKeys;
@ -874,7 +876,8 @@ public:
//! Adds a key to the store, without saving it to disk (used by LoadWallet) //! Adds a key to the store, without saving it to disk (used by LoadWallet)
bool LoadKey(const CKey& key, const CPubKey &pubkey) { return CCryptoKeyStore::AddKeyPubKey(key, pubkey); } bool LoadKey(const CKey& key, const CPubKey &pubkey) { return CCryptoKeyStore::AddKeyPubKey(key, pubkey); }
//! Load metadata (used by LoadWallet) //! Load metadata (used by LoadWallet)
bool LoadKeyMetadata(const CTxDestination& pubKey, const CKeyMetadata &metadata); bool LoadKeyMetadata(const CKeyID& keyID, const CKeyMetadata &metadata);
bool LoadScriptMetadata(const CScriptID& script_id, const CKeyMetadata &metadata);
bool LoadMinVersion(int nVersion) { AssertLockHeld(cs_wallet); nWalletVersion = nVersion; nWalletMaxVersion = std::max(nWalletMaxVersion, nVersion); return true; } bool LoadMinVersion(int nVersion) { AssertLockHeld(cs_wallet); nWalletVersion = nVersion; nWalletMaxVersion = std::max(nWalletMaxVersion, nVersion); return true; }
void UpdateTimeFirstKey(int64_t nCreateTime); void UpdateTimeFirstKey(int64_t nCreateTime);

30
src/wallet/walletdb.cpp
View file

@ -423,27 +423,23 @@ ReadKeyValue(CWallet* pwallet, CDataStream& ssKey, CDataStream& ssValue,
} }
wss.fIsEncrypted = true; wss.fIsEncrypted = true;
} }
else if (strType == "keymeta" || strType == "watchmeta") else if (strType == "keymeta")
{ {
CTxDestination keyID; CPubKey vchPubKey;
if (strType == "keymeta") ssKey >> vchPubKey;
{
CPubKey vchPubKey;
ssKey >> vchPubKey;
keyID = vchPubKey.GetID();
}
else if (strType == "watchmeta")
{
CScript script;
ssKey >> script;
keyID = CScriptID(script);
}
CKeyMetadata keyMeta; CKeyMetadata keyMeta;
ssValue >> keyMeta; ssValue >> keyMeta;
wss.nKeyMeta++; wss.nKeyMeta++;
pwallet->LoadKeyMetadata(vchPubKey.GetID(), keyMeta);
pwallet->LoadKeyMetadata(keyID, keyMeta); }
else if (strType == "watchmeta")
{
CScript script;
ssKey >> script;
CKeyMetadata keyMeta;
ssValue >> keyMeta;
wss.nKeyMeta++;
pwallet->LoadScriptMetadata(CScriptID(script), keyMeta);
} }
else if (strType == "defaultkey") else if (strType == "defaultkey")
{ {