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Latest Zcash updates

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This commit is contained in:
miketout
2018-09-20 13:32:57 -07:00
parent 75cd5b6b80 36243f41f1
commit 644c7445ec
38 changed files with 996 additions and 515 deletions
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132
src/wallet/rpcdump.cpp
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@@ -297,28 +297,23 @@ UniValue importwallet_impl(const UniValue& params, bool fHelp, bool fImportZKeys
// Let's see if the address is a valid Zcash spending key
if (fImportZKeys) {
auto spendingkey = DecodeSpendingKey(vstr[0]);
int64_t nTime = DecodeDumpTime(vstr[1]);
// Only include hdKeypath and seedFpStr if we have both
boost::optional<std::string> hdKeypath = (vstr.size() > 3) ? boost::optional<std::string>(vstr[2]) : boost::none;
boost::optional<std::string> seedFpStr = (vstr.size() > 3) ? boost::optional<std::string>(vstr[3]) : boost::none;
if (IsValidSpendingKey(spendingkey)) {
// TODO: Add Sapling support. For now, ensure we can freely convert.
assert(boost::get<libzcash::SproutSpendingKey>(&spendingkey) != nullptr);
auto key = boost::get<libzcash::SproutSpendingKey>(spendingkey);
auto addr = key.address();
if (pwalletMain->HaveSproutSpendingKey(addr)) {
LogPrint("zrpc", "Skipping import of zaddr %s (key already present)\n", EncodePaymentAddress(addr));
continue;
}
int64_t nTime = DecodeDumpTime(vstr[1]);
LogPrint("zrpc", "Importing zaddr %s...\n", EncodePaymentAddress(addr));
if (!pwalletMain->AddZKey(key)) {
auto addResult = boost::apply_visitor(
AddSpendingKeyToWallet(pwalletMain, Params().GetConsensus(), nTime, hdKeypath, seedFpStr, true), spendingkey);
if (addResult == KeyAlreadyExists){
LogPrint("zrpc", "Skipping import of zaddr (key already present)\n");
} else if (addResult == KeyNotAdded) {
// Something went wrong
fGood = false;
continue;
}
// Successfully imported zaddr. Now import the metadata.
pwalletMain->mapZKeyMetadata[addr].nCreateTime = nTime;
continue;
} else {
LogPrint("zrpc", "Importing detected an error: invalid spending key. Trying as a transparent key...\n");
// Not a valid spending key, so carry on and see if it's a Zcash style address.
// Not a valid spending key, so carry on and see if it's a Zcash style t-address.
}
}
@@ -508,8 +503,14 @@ UniValue dumpwallet_impl(const UniValue& params, bool fHelp, bool fDumpZKeys)
// produce output
file << strprintf("# Wallet dump created by Komodo %s (%s)\n", CLIENT_BUILD, CLIENT_DATE);
file << strprintf("# * Created on %s\n", EncodeDumpTime(GetTime()));
file << strprintf("# * Best block at time of backup was %i (%s),\n", chainActive.Height(), chainActive.LastTip()->GetBlockHash().ToString());
file << strprintf("# mined on %s\n", EncodeDumpTime(chainActive.LastTip()->GetBlockTime()));
file << strprintf("# * Best block at time of backup was %i (%s),\n", chainActive.Height(), chainActive.Tip()->GetBlockHash().ToString());
file << strprintf("# mined on %s\n", EncodeDumpTime(chainActive.Tip()->GetBlockTime()));
{
HDSeed hdSeed;
pwalletMain->GetHDSeed(hdSeed);
file << strprintf("# HDSeed=%s fingerprint=%s", pwalletMain->GetHDChain().seedFp.GetHex(), hdSeed.Fingerprint().GetHex());
file << "\n";
}
file << "\n";
for (std::vector<std::pair<int64_t, CKeyID> >::const_iterator it = vKeyBirth.begin(); it != vKeyBirth.end(); it++) {
const CKeyID &keyid = it->second;
@@ -529,18 +530,37 @@ UniValue dumpwallet_impl(const UniValue& params, bool fHelp, bool fDumpZKeys)
file << "\n";
if (fDumpZKeys) {
std::set<libzcash::SproutPaymentAddress> addresses;
pwalletMain->GetSproutPaymentAddresses(addresses);
std::set<libzcash::SproutPaymentAddress> sproutAddresses;
pwalletMain->GetSproutPaymentAddresses(sproutAddresses);
file << "\n";
file << "# Zkeys\n";
file << "\n";
for (auto addr : addresses ) {
for (auto addr : sproutAddresses) {
libzcash::SproutSpendingKey key;
if (pwalletMain->GetSproutSpendingKey(addr, key)) {
std::string strTime = EncodeDumpTime(pwalletMain->mapZKeyMetadata[addr].nCreateTime);
std::string strTime = EncodeDumpTime(pwalletMain->mapSproutZKeyMetadata[addr].nCreateTime);
file << strprintf("%s %s # zaddr=%s\n", EncodeSpendingKey(key), strTime, EncodePaymentAddress(addr));
}
}
std::set<libzcash::SaplingPaymentAddress> saplingAddresses;
pwalletMain->GetSaplingPaymentAddresses(saplingAddresses);
file << "\n";
file << "# Sapling keys\n";
file << "\n";
for (auto addr : saplingAddresses) {
libzcash::SaplingExtendedSpendingKey extsk;
if (pwalletMain->GetSaplingExtendedSpendingKey(addr, extsk)) {
auto ivk = extsk.expsk.full_viewing_key().in_viewing_key();
CKeyMetadata keyMeta = pwalletMain->mapSaplingZKeyMetadata[ivk];
std::string strTime = EncodeDumpTime(keyMeta.nCreateTime);
// Keys imported with z_importkey do not have zip32 metadata
if (keyMeta.hdKeypath.empty() || keyMeta.seedFp.IsNull()) {
file << strprintf("%s %s # zaddr=%s\n", EncodeSpendingKey(extsk), strTime, EncodePaymentAddress(addr));
} else {
file << strprintf("%s %s %s %s # zaddr=%s\n", EncodeSpendingKey(extsk), strTime, keyMeta.hdKeypath, keyMeta.seedFp.GetHex(), EncodePaymentAddress(addr));
}
}
}
file << "\n";
}
@@ -550,67 +570,6 @@ UniValue dumpwallet_impl(const UniValue& params, bool fHelp, bool fDumpZKeys)
return exportfilepath.string();
}
class AddSpendingKeyToWallet : public boost::static_visitor<bool>
{
private:
CWallet *m_wallet;
const Consensus::Params &params;
public:
AddSpendingKeyToWallet(CWallet *wallet, const Consensus::Params &params) :
m_wallet(wallet), params(params) {}
bool operator()(const libzcash::SproutSpendingKey &sk) const {
auto addr = sk.address();
// Don't throw error in case a key is already there
if (m_wallet->HaveSproutSpendingKey(addr)) {
return true;
} else {
m_wallet->MarkDirty();
if (!m_wallet-> AddZKey(sk)) {
throw JSONRPCError(RPC_WALLET_ERROR, "Error adding spending key to wallet");
}
m_wallet->mapZKeyMetadata[addr].nCreateTime = 1;
return false;
}
}
bool operator()(const libzcash::SaplingExtendedSpendingKey &sk) const {
auto fvk = sk.expsk.full_viewing_key();
auto ivk = fvk.in_viewing_key();
auto addr = sk.DefaultAddress();
{
// Don't throw error in case a key is already there
if (m_wallet->HaveSaplingSpendingKey(fvk)) {
return true;
} else {
m_wallet->MarkDirty();
if (!m_wallet-> AddSaplingZKey(sk, addr)) {
throw JSONRPCError(RPC_WALLET_ERROR, "Error adding spending key to wallet");
}
// Sapling addresses can't have been used in transactions prior to activation.
if (params.vUpgrades[Consensus::UPGRADE_SAPLING].nActivationHeight == Consensus::NetworkUpgrade::ALWAYS_ACTIVE) {
m_wallet->mapSaplingZKeyMetadata[ivk].nCreateTime = 1;
} else {
// Friday, 26 October 2018 00:00:00 GMT - definitely before Sapling activates
m_wallet->mapSaplingZKeyMetadata[ivk].nCreateTime = 1540512000;
}
return false;
}
}
}
bool operator()(const libzcash::InvalidEncoding& no) const {
throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY, "Invalid spending key");
}
};
UniValue z_importkey(const UniValue& params, bool fHelp)
{
@@ -683,11 +642,14 @@ UniValue z_importkey(const UniValue& params, bool fHelp)
}
// Sapling support
auto keyAlreadyExists = boost::apply_visitor(
AddSpendingKeyToWallet(pwalletMain, Params().GetConsensus()), spendingkey);
if (keyAlreadyExists && fIgnoreExistingKey) {
auto addResult = boost::apply_visitor(AddSpendingKeyToWallet(pwalletMain, Params().GetConsensus()), spendingkey);
if (addResult == KeyAlreadyExists && fIgnoreExistingKey) {
return NullUniValue;
}
pwalletMain->MarkDirty();
if (addResult == KeyNotAdded) {
throw JSONRPCError(RPC_WALLET_ERROR, "Error adding spending key to wallet");
}
// whenever a key is imported, we need to scan the whole chain
pwalletMain->nTimeFirstKey = 1; // 0 would be considered 'no value'