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rpcdump.cpp
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rpcdump.cpp
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// Copyright (c) 2009-2018 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 <chain.h>
#include <core_io.h>
#include <interfaces/chain.h>
#include <key_io.h>
#include <merkleblock.h>
#include <rpc/server.h>
#include <rpc/util.h>
#include <script/descriptor.h>
#include <script/script.h>
#include <script/standard.h>
#include <sync.h>
#include <util/bip32.h>
#include <util/system.h>
#include <util/time.h>
#include <validation.h>
#include <wallet/wallet.h>
#include <wallet/rpcwallet.h>
#include <stdint.h>
#include <boost/algorithm/string.hpp>
#include <boost/date_time/posix_time/posix_time.hpp>
#include <univalue.h>
int64_t static DecodeDumpTime(const std::string &str) {
static const boost::posix_time::ptime epoch = boost::posix_time::from_time_t(0);
static const std::locale loc(std::locale::classic(),
new boost::posix_time::time_input_facet("%Y-%m-%dT%H:%M:%SZ"));
std::istringstream iss(str);
iss.imbue(loc);
boost::posix_time::ptime ptime(boost::date_time::not_a_date_time);
iss >> ptime;
if (ptime.is_not_a_date_time())
return 0;
return (ptime - epoch).total_seconds();
}
std::string static EncodeDumpString(const std::string &str) {
std::stringstream ret;
for (const unsigned char c : str) {
if (c <= 32 || c >= 128 || c == '%') {
ret << '%' << HexStr(&c, &c + 1);
} else {
ret << c;
}
}
return ret.str();
}
static std::string DecodeDumpString(const std::string &str) {
std::stringstream ret;
for (unsigned int pos = 0; pos < str.length(); pos++) {
unsigned char c = str[pos];
if (c == '%' && pos+2 < str.length()) {
c = (((str[pos+1]>>6)*9+((str[pos+1]-'0')&15)) << 4) |
((str[pos+2]>>6)*9+((str[pos+2]-'0')&15));
pos += 2;
}
ret << c;
}
return ret.str();
}
static bool GetWalletAddressesForKey(CWallet* const pwallet, const CKeyID& keyid, std::string& strAddr, std::string& strLabel) EXCLUSIVE_LOCKS_REQUIRED(pwallet->cs_wallet)
{
bool fLabelFound = false;
CKey key;
pwallet->GetKey(keyid, key);
for (const auto& dest : GetAllDestinationsForKey(key.GetPubKey())) {
if (pwallet->mapAddressBook.count(dest)) {
if (!strAddr.empty()) {
strAddr += ",";
}
strAddr += EncodeDestination(dest);
strLabel = EncodeDumpString(pwallet->mapAddressBook[dest].name);
fLabelFound = true;
}
}
if (!fLabelFound) {
strAddr = EncodeDestination(GetDestinationForKey(key.GetPubKey(), pwallet->m_default_address_type));
}
return fLabelFound;
}
static const int64_t TIMESTAMP_MIN = 0;
static void RescanWallet(CWallet& wallet, const WalletRescanReserver& reserver, int64_t time_begin = TIMESTAMP_MIN, bool update = true)
{
int64_t scanned_time = wallet.RescanFromTime(time_begin, reserver, update);
if (wallet.IsAbortingRescan()) {
throw JSONRPCError(RPC_MISC_ERROR, "Rescan aborted by user.");
} else if (scanned_time > time_begin) {
throw JSONRPCError(RPC_WALLET_ERROR, "Rescan was unable to fully rescan the blockchain. Some transactions may be missing.");
}
}
UniValue importprivkey(const JSONRPCRequest& request)
{
std::shared_ptr<CWallet> const wallet = GetWalletForJSONRPCRequest(request);
CWallet* const pwallet = wallet.get();
if (!EnsureWalletIsAvailable(pwallet, request.fHelp)) {
return NullUniValue;
}
if (request.fHelp || request.params.size() < 1 || request.params.size() > 3)
throw std::runtime_error(
RPCHelpMan{"importprivkey",
"\nAdds a private key (as returned by dumpprivkey) to your wallet. Requires a new wallet backup.\n"
"Hint: use importmulti to import more than one private key.\n"
"\nNote: This call can take over an hour to complete if rescan is true, during that time, other rpc calls\n"
"may report that the imported key exists but related transactions are still missing, leading to temporarily incorrect/bogus balances and unspent outputs until rescan completes.\n",
{
{"privkey", RPCArg::Type::STR, RPCArg::Optional::NO, "The private key (see dumpprivkey)"},
{"label", RPCArg::Type::STR, /* default */ "current label if address exists, otherwise \"\"", "An optional label"},
{"rescan", RPCArg::Type::BOOL, /* default */ "true", "Rescan the wallet for transactions"},
},
RPCResults{},
RPCExamples{
"\nDump a private key\n"
+ HelpExampleCli("dumpprivkey", "\"myaddress\"") +
"\nImport the private key with rescan\n"
+ HelpExampleCli("importprivkey", "\"mykey\"") +
"\nImport using a label and without rescan\n"
+ HelpExampleCli("importprivkey", "\"mykey\" \"testing\" false") +
"\nImport using default blank label and without rescan\n"
+ HelpExampleCli("importprivkey", "\"mykey\" \"\" false") +
"\nAs a JSON-RPC call\n"
+ HelpExampleRpc("importprivkey", "\"mykey\", \"testing\", false")
},
}.ToString());
if (pwallet->IsWalletFlagSet(WALLET_FLAG_DISABLE_PRIVATE_KEYS)) {
throw JSONRPCError(RPC_WALLET_ERROR, "Cannot import private keys to a wallet with private keys disabled");
}
WalletRescanReserver reserver(pwallet);
bool fRescan = true;
{
auto locked_chain = pwallet->chain().lock();
LOCK(pwallet->cs_wallet);
EnsureWalletIsUnlocked(pwallet);
std::string strSecret = request.params[0].get_str();
std::string strLabel = "";
if (!request.params[1].isNull())
strLabel = request.params[1].get_str();
// Whether to perform rescan after import
if (!request.params[2].isNull())
fRescan = request.params[2].get_bool();
if (fRescan && fPruneMode)
throw JSONRPCError(RPC_WALLET_ERROR, "Rescan is disabled in pruned mode");
if (fRescan && !reserver.reserve()) {
throw JSONRPCError(RPC_WALLET_ERROR, "Wallet is currently rescanning. Abort existing rescan or wait.");
}
CKey key = DecodeSecret(strSecret);
if (!key.IsValid()) throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY, "Invalid private key encoding");
CPubKey pubkey = key.GetPubKey();
assert(key.VerifyPubKey(pubkey));
CKeyID vchAddress = pubkey.GetID();
{
pwallet->MarkDirty();
// We don't know which corresponding address will be used;
// label all new addresses, and label existing addresses if a
// label was passed.
for (const auto& dest : GetAllDestinationsForKey(pubkey)) {
if (!request.params[1].isNull() || pwallet->mapAddressBook.count(dest) == 0) {
pwallet->SetAddressBook(dest, strLabel, "receive");
}
}
// Don't throw error in case a key is already there
if (pwallet->HaveKey(vchAddress)) {
return NullUniValue;
}
// whenever a key is imported, we need to scan the whole chain
pwallet->UpdateTimeFirstKey(1);
pwallet->mapKeyMetadata[vchAddress].nCreateTime = 1;
if (!pwallet->AddKeyPubKey(key, pubkey)) {
throw JSONRPCError(RPC_WALLET_ERROR, "Error adding key to wallet");
}
pwallet->LearnAllRelatedScripts(pubkey);
}
}
if (fRescan) {
RescanWallet(*pwallet, reserver);
}
return NullUniValue;
}
UniValue abortrescan(const JSONRPCRequest& request)
{
std::shared_ptr<CWallet> const wallet = GetWalletForJSONRPCRequest(request);
CWallet* const pwallet = wallet.get();
if (!EnsureWalletIsAvailable(pwallet, request.fHelp)) {
return NullUniValue;
}
if (request.fHelp || request.params.size() > 0)
throw std::runtime_error(
RPCHelpMan{"abortrescan",
"\nStops current wallet rescan triggered by an RPC call, e.g. by an importprivkey call.\n",
{},
RPCResults{},
RPCExamples{
"\nImport a private key\n"
+ HelpExampleCli("importprivkey", "\"mykey\"") +
"\nAbort the running wallet rescan\n"
+ HelpExampleCli("abortrescan", "") +
"\nAs a JSON-RPC call\n"
+ HelpExampleRpc("abortrescan", "")
},
}.ToString());
if (!pwallet->IsScanning() || pwallet->IsAbortingRescan()) return false;
pwallet->AbortRescan();
return true;
}
static void ImportAddress(CWallet*, const CTxDestination& dest, const std::string& strLabel);
static void ImportScript(CWallet* const pwallet, const CScript& script, const std::string& strLabel, bool isRedeemScript) EXCLUSIVE_LOCKS_REQUIRED(pwallet->cs_wallet)
{
if (!isRedeemScript && ::IsMine(*pwallet, script) == ISMINE_SPENDABLE) {
throw JSONRPCError(RPC_WALLET_ERROR, "The wallet already contains the private key for this address or script");
}
pwallet->MarkDirty();
if (!pwallet->HaveWatchOnly(script) && !pwallet->AddWatchOnly(script, 0 /* nCreateTime */)) {
throw JSONRPCError(RPC_WALLET_ERROR, "Error adding address to wallet");
}
if (isRedeemScript) {
const CScriptID id(script);
if (!pwallet->HaveCScript(id) && !pwallet->AddCScript(script)) {
throw JSONRPCError(RPC_WALLET_ERROR, "Error adding p2sh redeemScript to wallet");
}
ImportAddress(pwallet, id, strLabel);
} else {
CTxDestination destination;
if (ExtractDestination(script, destination)) {
pwallet->SetAddressBook(destination, strLabel, "receive");
}
}
}
static void ImportAddress(CWallet* const pwallet, const CTxDestination& dest, const std::string& strLabel) EXCLUSIVE_LOCKS_REQUIRED(pwallet->cs_wallet)
{
CScript script = GetScriptForDestination(dest);
ImportScript(pwallet, script, strLabel, false);
// add to address book or update label
if (IsValidDestination(dest))
pwallet->SetAddressBook(dest, strLabel, "receive");
}
UniValue importaddress(const JSONRPCRequest& request)
{
std::shared_ptr<CWallet> const wallet = GetWalletForJSONRPCRequest(request);
CWallet* const pwallet = wallet.get();
if (!EnsureWalletIsAvailable(pwallet, request.fHelp)) {
return NullUniValue;
}
if (request.fHelp || request.params.size() < 1 || request.params.size() > 4)
throw std::runtime_error(
RPCHelpMan{"importaddress",
"\nAdds an address or script (in hex) that can be watched as if it were in your wallet but cannot be used to spend. Requires a new wallet backup.\n"
"\nNote: This call can take over an hour to complete if rescan is true, during that time, other rpc calls\n"
"may report that the imported address exists but related transactions are still missing, leading to temporarily incorrect/bogus balances and unspent outputs until rescan completes.\n"
"If you have the full public key, you should call importpubkey instead of this.\n"
"\nNote: If you import a non-standard raw script in hex form, outputs sending to it will be treated\n"
"as change, and not show up in many RPCs.\n",
{
{"address", RPCArg::Type::STR, RPCArg::Optional::NO, "The Bitcoin address (or hex-encoded script)"},
{"label", RPCArg::Type::STR, /* default */ "\"\"", "An optional label"},
{"rescan", RPCArg::Type::BOOL, /* default */ "true", "Rescan the wallet for transactions"},
{"p2sh", RPCArg::Type::BOOL, /* default */ "false", "Add the P2SH version of the script as well"},
},
RPCResults{},
RPCExamples{
"\nImport an address with rescan\n"
+ HelpExampleCli("importaddress", "\"myaddress\"") +
"\nImport using a label without rescan\n"
+ HelpExampleCli("importaddress", "\"myaddress\" \"testing\" false") +
"\nAs a JSON-RPC call\n"
+ HelpExampleRpc("importaddress", "\"myaddress\", \"testing\", false")
},
}.ToString());
std::string strLabel;
if (!request.params[1].isNull())
strLabel = request.params[1].get_str();
// Whether to perform rescan after import
bool fRescan = true;
if (!request.params[2].isNull())
fRescan = request.params[2].get_bool();
if (fRescan && fPruneMode)
throw JSONRPCError(RPC_WALLET_ERROR, "Rescan is disabled in pruned mode");
WalletRescanReserver reserver(pwallet);
if (fRescan && !reserver.reserve()) {
throw JSONRPCError(RPC_WALLET_ERROR, "Wallet is currently rescanning. Abort existing rescan or wait.");
}
// Whether to import a p2sh version, too
bool fP2SH = false;
if (!request.params[3].isNull())
fP2SH = request.params[3].get_bool();
{
auto locked_chain = pwallet->chain().lock();
LOCK(pwallet->cs_wallet);
CTxDestination dest = DecodeDestination(request.params[0].get_str());
if (IsValidDestination(dest)) {
if (fP2SH) {
throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY, "Cannot use the p2sh flag with an address - use a script instead");
}
ImportAddress(pwallet, dest, strLabel);
} else if (IsHex(request.params[0].get_str())) {
std::vector<unsigned char> data(ParseHex(request.params[0].get_str()));
ImportScript(pwallet, CScript(data.begin(), data.end()), strLabel, fP2SH);
} else {
throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY, "Invalid Bitcoin address or script");
}
}
if (fRescan)
{
RescanWallet(*pwallet, reserver);
pwallet->ReacceptWalletTransactions();
}
return NullUniValue;
}
UniValue importprunedfunds(const JSONRPCRequest& request)
{
std::shared_ptr<CWallet> const wallet = GetWalletForJSONRPCRequest(request);
CWallet* const pwallet = wallet.get();
if (!EnsureWalletIsAvailable(pwallet, request.fHelp)) {
return NullUniValue;
}
if (request.fHelp || request.params.size() != 2)
throw std::runtime_error(
RPCHelpMan{"importprunedfunds",
"\nImports funds without rescan. Corresponding address or script must previously be included in wallet. Aimed towards pruned wallets. The end-user is responsible to import additional transactions that subsequently spend the imported outputs or rescan after the point in the blockchain the transaction is included.\n",
{
{"rawtransaction", RPCArg::Type::STR_HEX, RPCArg::Optional::NO, "A raw transaction in hex funding an already-existing address in wallet"},
{"txoutproof", RPCArg::Type::STR_HEX, RPCArg::Optional::NO, "The hex output from gettxoutproof that contains the transaction"},
},
RPCResults{},
RPCExamples{""},
}.ToString()
);
CMutableTransaction tx;
if (!DecodeHexTx(tx, request.params[0].get_str()))
throw JSONRPCError(RPC_DESERIALIZATION_ERROR, "TX decode failed");
uint256 hashTx = tx.GetHash();
CWalletTx wtx(pwallet, MakeTransactionRef(std::move(tx)));
CDataStream ssMB(ParseHexV(request.params[1], "proof"), SER_NETWORK, PROTOCOL_VERSION);
CMerkleBlock merkleBlock;
ssMB >> merkleBlock;
//Search partial merkle tree in proof for our transaction and index in valid block
std::vector<uint256> vMatch;
std::vector<unsigned int> vIndex;
unsigned int txnIndex = 0;
if (merkleBlock.txn.ExtractMatches(vMatch, vIndex) == merkleBlock.header.hashMerkleRoot) {
auto locked_chain = pwallet->chain().lock();
if (locked_chain->getBlockHeight(merkleBlock.header.GetHash()) == nullopt) {
throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY, "Block not found in chain");
}
std::vector<uint256>::const_iterator it;
if ((it = std::find(vMatch.begin(), vMatch.end(), hashTx))==vMatch.end()) {
throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY, "Transaction given doesn't exist in proof");
}
txnIndex = vIndex[it - vMatch.begin()];
}
else {
throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY, "Something wrong with merkleblock");
}
wtx.nIndex = txnIndex;
wtx.hashBlock = merkleBlock.header.GetHash();
auto locked_chain = pwallet->chain().lock();
LOCK(pwallet->cs_wallet);
if (pwallet->IsMine(*wtx.tx)) {
pwallet->AddToWallet(wtx, false);
return NullUniValue;
}
throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY, "No addresses in wallet correspond to included transaction");
}
UniValue removeprunedfunds(const JSONRPCRequest& request)
{
std::shared_ptr<CWallet> const wallet = GetWalletForJSONRPCRequest(request);
CWallet* const pwallet = wallet.get();
if (!EnsureWalletIsAvailable(pwallet, request.fHelp)) {
return NullUniValue;
}
if (request.fHelp || request.params.size() != 1)
throw std::runtime_error(
RPCHelpMan{"removeprunedfunds",
"\nDeletes the specified transaction from the wallet. Meant for use with pruned wallets and as a companion to importprunedfunds. This will affect wallet balances.\n",
{
{"txid", RPCArg::Type::STR_HEX, RPCArg::Optional::NO, "The hex-encoded id of the transaction you are deleting"},
},
RPCResults{},
RPCExamples{
HelpExampleCli("removeprunedfunds", "\"a8d0c0184dde994a09ec054286f1ce581bebf46446a512166eae7628734ea0a5\"") +
"\nAs a JSON-RPC call\n"
+ HelpExampleRpc("removeprunedfunds", "\"a8d0c0184dde994a09ec054286f1ce581bebf46446a512166eae7628734ea0a5\"")
},
}.ToString());
auto locked_chain = pwallet->chain().lock();
LOCK(pwallet->cs_wallet);
uint256 hash(ParseHashV(request.params[0], "txid"));
std::vector<uint256> vHash;
vHash.push_back(hash);
std::vector<uint256> vHashOut;
if (pwallet->ZapSelectTx(vHash, vHashOut) != DBErrors::LOAD_OK) {
throw JSONRPCError(RPC_WALLET_ERROR, "Could not properly delete the transaction.");
}
if(vHashOut.empty()) {
throw JSONRPCError(RPC_INVALID_PARAMETER, "Transaction does not exist in wallet.");
}
return NullUniValue;
}
UniValue importpubkey(const JSONRPCRequest& request)
{
std::shared_ptr<CWallet> const wallet = GetWalletForJSONRPCRequest(request);
CWallet* const pwallet = wallet.get();
if (!EnsureWalletIsAvailable(pwallet, request.fHelp)) {
return NullUniValue;
}
if (request.fHelp || request.params.size() < 1 || request.params.size() > 3)
throw std::runtime_error(
RPCHelpMan{"importpubkey",
"\nAdds a public key (in hex) that can be watched as if it were in your wallet but cannot be used to spend. Requires a new wallet backup.\n"
"\nNote: This call can take over an hour to complete if rescan is true, during that time, other rpc calls\n"
"may report that the imported pubkey exists but related transactions are still missing, leading to temporarily incorrect/bogus balances and unspent outputs until rescan completes.\n",
{
{"pubkey", RPCArg::Type::STR, RPCArg::Optional::NO, "The hex-encoded public key"},
{"label", RPCArg::Type::STR, /* default */ "\"\"", "An optional label"},
{"rescan", RPCArg::Type::BOOL, /* default */ "true", "Rescan the wallet for transactions"},
},
RPCResults{},
RPCExamples{
"\nImport a public key with rescan\n"
+ HelpExampleCli("importpubkey", "\"mypubkey\"") +
"\nImport using a label without rescan\n"
+ HelpExampleCli("importpubkey", "\"mypubkey\" \"testing\" false") +
"\nAs a JSON-RPC call\n"
+ HelpExampleRpc("importpubkey", "\"mypubkey\", \"testing\", false")
},
}.ToString());
std::string strLabel;
if (!request.params[1].isNull())
strLabel = request.params[1].get_str();
// Whether to perform rescan after import
bool fRescan = true;
if (!request.params[2].isNull())
fRescan = request.params[2].get_bool();
if (fRescan && fPruneMode)
throw JSONRPCError(RPC_WALLET_ERROR, "Rescan is disabled in pruned mode");
WalletRescanReserver reserver(pwallet);
if (fRescan && !reserver.reserve()) {
throw JSONRPCError(RPC_WALLET_ERROR, "Wallet is currently rescanning. Abort existing rescan or wait.");
}
if (!IsHex(request.params[0].get_str()))
throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY, "Pubkey must be a hex string");
std::vector<unsigned char> data(ParseHex(request.params[0].get_str()));
CPubKey pubKey(data.begin(), data.end());
if (!pubKey.IsFullyValid())
throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY, "Pubkey is not a valid public key");
{
auto locked_chain = pwallet->chain().lock();
LOCK(pwallet->cs_wallet);
for (const auto& dest : GetAllDestinationsForKey(pubKey)) {
ImportAddress(pwallet, dest, strLabel);
}
ImportScript(pwallet, GetScriptForRawPubKey(pubKey), strLabel, false);
pwallet->LearnAllRelatedScripts(pubKey);
}
if (fRescan)
{
RescanWallet(*pwallet, reserver);
pwallet->ReacceptWalletTransactions();
}
return NullUniValue;
}
UniValue importwallet(const JSONRPCRequest& request)
{
std::shared_ptr<CWallet> const wallet = GetWalletForJSONRPCRequest(request);
CWallet* const pwallet = wallet.get();
if (!EnsureWalletIsAvailable(pwallet, request.fHelp)) {
return NullUniValue;
}
if (request.fHelp || request.params.size() != 1)
throw std::runtime_error(
RPCHelpMan{"importwallet",
"\nImports keys from a wallet dump file (see dumpwallet). Requires a new wallet backup to include imported keys.\n",
{
{"filename", RPCArg::Type::STR, RPCArg::Optional::NO, "The wallet file"},
},
RPCResults{},
RPCExamples{
"\nDump the wallet\n"
+ HelpExampleCli("dumpwallet", "\"test\"") +
"\nImport the wallet\n"
+ HelpExampleCli("importwallet", "\"test\"") +
"\nImport using the json rpc call\n"
+ HelpExampleRpc("importwallet", "\"test\"")
},
}.ToString());
if (fPruneMode)
throw JSONRPCError(RPC_WALLET_ERROR, "Importing wallets is disabled in pruned mode");
WalletRescanReserver reserver(pwallet);
if (!reserver.reserve()) {
throw JSONRPCError(RPC_WALLET_ERROR, "Wallet is currently rescanning. Abort existing rescan or wait.");
}
int64_t nTimeBegin = 0;
bool fGood = true;
{
auto locked_chain = pwallet->chain().lock();
LOCK(pwallet->cs_wallet);
EnsureWalletIsUnlocked(pwallet);
fsbridge::ifstream file;
file.open(request.params[0].get_str(), std::ios::in | std::ios::ate);
if (!file.is_open()) {
throw JSONRPCError(RPC_INVALID_PARAMETER, "Cannot open wallet dump file");
}
Optional<int> tip_height = locked_chain->getHeight();
nTimeBegin = tip_height ? locked_chain->getBlockTime(*tip_height) : 0;
int64_t nFilesize = std::max((int64_t)1, (int64_t)file.tellg());
file.seekg(0, file.beg);
// Use uiInterface.ShowProgress instead of pwallet.ShowProgress because pwallet.ShowProgress has a cancel button tied to AbortRescan which
// we don't want for this progress bar showing the import progress. uiInterface.ShowProgress does not have a cancel button.
uiInterface.ShowProgress(strprintf("%s " + _("Importing..."), pwallet->GetDisplayName()), 0, false); // show progress dialog in GUI
std::vector<std::tuple<CKey, int64_t, bool, std::string>> keys;
std::vector<std::pair<CScript, int64_t>> scripts;
while (file.good()) {
uiInterface.ShowProgress("", std::max(1, std::min(50, (int)(((double)file.tellg() / (double)nFilesize) * 100))), false);
std::string line;
std::getline(file, line);
if (line.empty() || line[0] == '#')
continue;
std::vector<std::string> vstr;
boost::split(vstr, line, boost::is_any_of(" "));
if (vstr.size() < 2)
continue;
CKey key = DecodeSecret(vstr[0]);
if (key.IsValid()) {
int64_t nTime = DecodeDumpTime(vstr[1]);
std::string strLabel;
bool fLabel = true;
for (unsigned int nStr = 2; nStr < vstr.size(); nStr++) {
if (vstr[nStr].front() == '#')
break;
if (vstr[nStr] == "change=1")
fLabel = false;
if (vstr[nStr] == "reserve=1")
fLabel = false;
if (vstr[nStr].substr(0,6) == "label=") {
strLabel = DecodeDumpString(vstr[nStr].substr(6));
fLabel = true;
}
}
keys.push_back(std::make_tuple(key, nTime, fLabel, strLabel));
} else if(IsHex(vstr[0])) {
std::vector<unsigned char> vData(ParseHex(vstr[0]));
CScript script = CScript(vData.begin(), vData.end());
int64_t birth_time = DecodeDumpTime(vstr[1]);
scripts.push_back(std::pair<CScript, int64_t>(script, birth_time));
}
}
file.close();
// We now know whether we are importing private keys, so we can error if private keys are disabled
if (keys.size() > 0 && pwallet->IsWalletFlagSet(WALLET_FLAG_DISABLE_PRIVATE_KEYS)) {
uiInterface.ShowProgress("", 100, false); // hide progress dialog in GUI
throw JSONRPCError(RPC_WALLET_ERROR, "Importing wallets is disabled when private keys are disabled");
}
double total = (double)(keys.size() + scripts.size());
double progress = 0;
for (const auto& key_tuple : keys) {
uiInterface.ShowProgress("", std::max(50, std::min(75, (int)((progress / total) * 100) + 50)), false);
const CKey& key = std::get<0>(key_tuple);
int64_t time = std::get<1>(key_tuple);
bool has_label = std::get<2>(key_tuple);
std::string label = std::get<3>(key_tuple);
CPubKey pubkey = key.GetPubKey();
assert(key.VerifyPubKey(pubkey));
CKeyID keyid = pubkey.GetID();
if (pwallet->HaveKey(keyid)) {
pwallet->WalletLogPrintf("Skipping import of %s (key already present)\n", EncodeDestination(keyid));
continue;
}
pwallet->WalletLogPrintf("Importing %s...\n", EncodeDestination(keyid));
if (!pwallet->AddKeyPubKey(key, pubkey)) {
fGood = false;
continue;
}
pwallet->mapKeyMetadata[keyid].nCreateTime = time;
if (has_label)
pwallet->SetAddressBook(keyid, label, "receive");
nTimeBegin = std::min(nTimeBegin, time);
progress++;
}
for (const auto& script_pair : scripts) {
uiInterface.ShowProgress("", std::max(50, std::min(75, (int)((progress / total) * 100) + 50)), false);
const CScript& script = script_pair.first;
int64_t time = script_pair.second;
CScriptID id(script);
if (pwallet->HaveCScript(id)) {
pwallet->WalletLogPrintf("Skipping import of %s (script already present)\n", HexStr(script));
continue;
}
if(!pwallet->AddCScript(script)) {
pwallet->WalletLogPrintf("Error importing script %s\n", HexStr(script));
fGood = false;
continue;
}
if (time > 0) {
pwallet->m_script_metadata[id].nCreateTime = time;
nTimeBegin = std::min(nTimeBegin, time);
}
progress++;
}
uiInterface.ShowProgress("", 100, false); // hide progress dialog in GUI
pwallet->UpdateTimeFirstKey(nTimeBegin);
}
uiInterface.ShowProgress("", 100, false); // hide progress dialog in GUI
RescanWallet(*pwallet, reserver, nTimeBegin, false /* update */);
pwallet->MarkDirty();
if (!fGood)
throw JSONRPCError(RPC_WALLET_ERROR, "Error adding some keys/scripts to wallet");
return NullUniValue;
}
UniValue dumpprivkey(const JSONRPCRequest& request)
{
std::shared_ptr<CWallet> const wallet = GetWalletForJSONRPCRequest(request);
CWallet* const pwallet = wallet.get();
if (!EnsureWalletIsAvailable(pwallet, request.fHelp)) {
return NullUniValue;
}
if (request.fHelp || request.params.size() != 1)
throw std::runtime_error(
RPCHelpMan{"dumpprivkey",
"\nReveals the private key corresponding to 'address'.\n"
"Then the importprivkey can be used with this output\n",
{
{"address", RPCArg::Type::STR, RPCArg::Optional::NO, "The bitcoin address for the private key"},
},
RPCResult{
"\"key\" (string) The private key\n"
},
RPCExamples{
HelpExampleCli("dumpprivkey", "\"myaddress\"")
+ HelpExampleCli("importprivkey", "\"mykey\"")
+ HelpExampleRpc("dumpprivkey", "\"myaddress\"")
},
}.ToString());
auto locked_chain = pwallet->chain().lock();
LOCK(pwallet->cs_wallet);
EnsureWalletIsUnlocked(pwallet);
std::string strAddress = request.params[0].get_str();
CTxDestination dest = DecodeDestination(strAddress);
if (!IsValidDestination(dest)) {
throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY, "Invalid Bitcoin address");
}
auto keyid = GetKeyForDestination(*pwallet, dest);
if (keyid.IsNull()) {
throw JSONRPCError(RPC_TYPE_ERROR, "Address does not refer to a key");
}
CKey vchSecret;
if (!pwallet->GetKey(keyid, vchSecret)) {
throw JSONRPCError(RPC_WALLET_ERROR, "Private key for address " + strAddress + " is not known");
}
return EncodeSecret(vchSecret);
}
UniValue dumpwallet(const JSONRPCRequest& request)
{
std::shared_ptr<CWallet> const wallet = GetWalletForJSONRPCRequest(request);
CWallet* const pwallet = wallet.get();
if (!EnsureWalletIsAvailable(pwallet, request.fHelp)) {
return NullUniValue;
}
if (request.fHelp || request.params.size() != 1)
throw std::runtime_error(
RPCHelpMan{"dumpwallet",
"\nDumps all wallet keys in a human-readable format to a server-side file. This does not allow overwriting existing files.\n"
"Imported scripts are included in the dumpfile, but corresponding BIP173 addresses, etc. may not be added automatically by importwallet.\n"
"Note that if your wallet contains keys which are not derived from your HD seed (e.g. imported keys), these are not covered by\n"
"only backing up the seed itself, and must be backed up too (e.g. ensure you back up the whole dumpfile).\n",
{
{"filename", RPCArg::Type::STR, RPCArg::Optional::NO, "The filename with path (either absolute or relative to bitcoind)"},
},
RPCResult{
"{ (json object)\n"
" \"filename\" : { (string) The filename with full absolute path\n"
"}\n"
},
RPCExamples{
HelpExampleCli("dumpwallet", "\"test\"")
+ HelpExampleRpc("dumpwallet", "\"test\"")
},
}.ToString());
auto locked_chain = pwallet->chain().lock();
LOCK(pwallet->cs_wallet);
EnsureWalletIsUnlocked(pwallet);
fs::path filepath = request.params[0].get_str();
filepath = fs::absolute(filepath);
/* Prevent arbitrary files from being overwritten. There have been reports
* that users have overwritten wallet files this way:
* https://github.com/bitcoin/bitcoin/issues/9934
* It may also avoid other security issues.
*/
if (fs::exists(filepath)) {
throw JSONRPCError(RPC_INVALID_PARAMETER, filepath.string() + " already exists. If you are sure this is what you want, move it out of the way first");
}
fsbridge::ofstream file;
file.open(filepath);
if (!file.is_open())
throw JSONRPCError(RPC_INVALID_PARAMETER, "Cannot open wallet dump file");
std::map<CTxDestination, int64_t> mapKeyBirth;
const std::map<CKeyID, int64_t>& mapKeyPool = pwallet->GetAllReserveKeys();
pwallet->GetKeyBirthTimes(*locked_chain, mapKeyBirth);
std::set<CScriptID> scripts = pwallet->GetCScripts();
// TODO: include scripts in GetKeyBirthTimes() output instead of separate
// sort time/key pairs
std::vector<std::pair<int64_t, CKeyID> > vKeyBirth;
for (const auto& entry : mapKeyBirth) {
if (const CKeyID* keyID = boost::get<CKeyID>(&entry.first)) { // set and test
vKeyBirth.push_back(std::make_pair(entry.second, *keyID));
}
}
mapKeyBirth.clear();
std::sort(vKeyBirth.begin(), vKeyBirth.end());
// produce output
file << strprintf("# Wallet dump created by Bitcoin %s\n", CLIENT_BUILD);
file << strprintf("# * Created on %s\n", FormatISO8601DateTime(GetTime()));
const Optional<int> tip_height = locked_chain->getHeight();
file << strprintf("# * Best block at time of backup was %i (%s),\n", tip_height.get_value_or(-1), tip_height ? locked_chain->getBlockHash(*tip_height).ToString() : "(missing block hash)");
file << strprintf("# mined on %s\n", tip_height ? FormatISO8601DateTime(locked_chain->getBlockTime(*tip_height)) : "(missing block time)");
file << "\n";
// add the base58check encoded extended master if the wallet uses HD
CKeyID seed_id = pwallet->GetHDChain().seed_id;
if (!seed_id.IsNull())
{
CKey seed;
if (pwallet->GetKey(seed_id, seed)) {
CExtKey masterKey;
masterKey.SetSeed(seed.begin(), seed.size());
file << "# extended private masterkey: " << EncodeExtKey(masterKey) << "\n\n";
}
}
for (std::vector<std::pair<int64_t, CKeyID> >::const_iterator it = vKeyBirth.begin(); it != vKeyBirth.end(); it++) {
const CKeyID &keyid = it->second;
std::string strTime = FormatISO8601DateTime(it->first);
std::string strAddr;
std::string strLabel;
CKey key;
if (pwallet->GetKey(keyid, key)) {
file << strprintf("%s %s ", EncodeSecret(key), strTime);
if (GetWalletAddressesForKey(pwallet, keyid, strAddr, strLabel)) {
file << strprintf("label=%s", strLabel);
} else if (keyid == seed_id) {
file << "hdseed=1";
} else if (mapKeyPool.count(keyid)) {
file << "reserve=1";
} else if (pwallet->mapKeyMetadata[keyid].hdKeypath == "s") {
file << "inactivehdseed=1";
} else {
file << "change=1";
}
file << strprintf(" # addr=%s%s\n", strAddr, (pwallet->mapKeyMetadata[keyid].has_key_origin ? " hdkeypath="+WriteHDKeypath(pwallet->mapKeyMetadata[keyid].key_origin.path) : ""));
}
}
file << "\n";
for (const CScriptID &scriptid : scripts) {
CScript script;
std::string create_time = "0";
std::string address = EncodeDestination(scriptid);
// get birth times for scripts with metadata
auto it = pwallet->m_script_metadata.find(scriptid);
if (it != pwallet->m_script_metadata.end()) {
create_time = FormatISO8601DateTime(it->second.nCreateTime);
}
if(pwallet->GetCScript(scriptid, script)) {
file << strprintf("%s %s script=1", HexStr(script.begin(), script.end()), create_time);
file << strprintf(" # addr=%s\n", address);
}
}
file << "\n";
file << "# End of dump\n";
file.close();
UniValue reply(UniValue::VOBJ);
reply.pushKV("filename", filepath.string());
return reply;
}
struct ImportData
{
// Input data
std::unique_ptr<CScript> redeemscript; //!< Provided redeemScript; will be moved to `import_scripts` if relevant.
std::unique_ptr<CScript> witnessscript; //!< Provided witnessScript; will be moved to `import_scripts` if relevant.
// Output data
std::set<CScript> import_scripts;
std::map<CKeyID, bool> used_keys; //!< Import these private keys if available (the value indicates whether if the key is required for solvability)
std::map<CKeyID, KeyOriginInfo> key_origins;
};
enum class ScriptContext
{
TOP, //!< Top-level scriptPubKey
P2SH, //!< P2SH redeemScript
WITNESS_V0, //!< P2WSH witnessScript
};
// Analyse the provided scriptPubKey, determining which keys and which redeem scripts from the ImportData struct are needed to spend it, and mark them as used.
// Returns an error string, or the empty string for success.
static std::string RecurseImportData(const CScript& script, ImportData& import_data, const ScriptContext script_ctx)
{
// Use Solver to obtain script type and parsed pubkeys or hashes:
std::vector<std::vector<unsigned char>> solverdata;
txnouttype script_type = Solver(script, solverdata);
switch (script_type) {
case TX_PUBKEY: {
CPubKey pubkey(solverdata[0].begin(), solverdata[0].end());
import_data.used_keys.emplace(pubkey.GetID(), false);
return "";
}
case TX_PUBKEYHASH: {
CKeyID id = CKeyID(uint160(solverdata[0]));
import_data.used_keys[id] = true;
return "";
}
case TX_SCRIPTHASH: {
if (script_ctx == ScriptContext::P2SH) throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY, "Trying to nest P2SH inside another P2SH");
if (script_ctx == ScriptContext::WITNESS_V0) throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY, "Trying to nest P2SH inside a P2WSH");
assert(script_ctx == ScriptContext::TOP);
CScriptID id = CScriptID(uint160(solverdata[0]));
auto subscript = std::move(import_data.redeemscript); // Remove redeemscript from import_data to check for superfluous script later.
if (!subscript) return "missing redeemscript";
if (CScriptID(*subscript) != id) return "redeemScript does not match the scriptPubKey";
import_data.import_scripts.emplace(*subscript);
return RecurseImportData(*subscript, import_data, ScriptContext::P2SH);
}
case TX_MULTISIG: {
for (size_t i = 1; i + 1< solverdata.size(); ++i) {
CPubKey pubkey(solverdata[i].begin(), solverdata[i].end());
import_data.used_keys.emplace(pubkey.GetID(), false);
}
return "";
}
case TX_WITNESS_V0_SCRIPTHASH: {
if (script_ctx == ScriptContext::WITNESS_V0) throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY, "Trying to nest P2WSH inside another P2WSH");
uint256 fullid(solverdata[0]);
CScriptID id;
CRIPEMD160().Write(fullid.begin(), fullid.size()).Finalize(id.begin());
auto subscript = std::move(import_data.witnessscript); // Remove redeemscript from import_data to check for superfluous script later.
if (!subscript) return "missing witnessscript";
if (CScriptID(*subscript) != id) return "witnessScript does not match the scriptPubKey or redeemScript";
if (script_ctx == ScriptContext::TOP) {
import_data.import_scripts.emplace(script); // Special rule for IsMine: native P2WSH requires the TOP script imported (see script/ismine.cpp)
}
import_data.import_scripts.emplace(*subscript);
return RecurseImportData(*subscript, import_data, ScriptContext::WITNESS_V0);
}
case TX_WITNESS_V0_KEYHASH: {
if (script_ctx == ScriptContext::WITNESS_V0) throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY, "Trying to nest P2WPKH inside P2WSH");
CKeyID id = CKeyID(uint160(solverdata[0]));
import_data.used_keys[id] = true;
if (script_ctx == ScriptContext::TOP) {
import_data.import_scripts.emplace(script); // Special rule for IsMine: native P2WPKH requires the TOP script imported (see script/ismine.cpp)
}
return "";
}
case TX_NULL_DATA:
return "unspendable script";
case TX_NONSTANDARD:
case TX_WITNESS_UNKNOWN:
default:
return "unrecognized script";
}
}
static UniValue ProcessImportLegacy(ImportData& import_data, std::map<CKeyID, CPubKey>& pubkey_map, std::map<CKeyID, CKey>& privkey_map, std::set<CScript>& script_pub_keys, bool& have_solving_data, const UniValue& data, std::vector<CKeyID>& ordered_pubkeys)
{
UniValue warnings(UniValue::VARR);
// First ensure scriptPubKey has either a script or JSON with "address" string
const UniValue& scriptPubKey = data["scriptPubKey"];
bool isScript = scriptPubKey.getType() == UniValue::VSTR;
if (!isScript && !(scriptPubKey.getType() == UniValue::VOBJ && scriptPubKey.exists("address"))) {
throw JSONRPCError(RPC_INVALID_PARAMETER, "scriptPubKey must be string with script or JSON with address string");
}
const std::string& output = isScript ? scriptPubKey.get_str() : scriptPubKey["address"].get_str();
// Optional fields.
const std::string& strRedeemScript = data.exists("redeemscript") ? data["redeemscript"].get_str() : "";
const std::string& witness_script_hex = data.exists("witnessscript") ? data["witnessscript"].get_str() : "";
const UniValue& pubKeys = data.exists("pubkeys") ? data["pubkeys"].get_array() : UniValue();
const UniValue& keys = data.exists("keys") ? data["keys"].get_array() : UniValue();
const bool internal = data.exists("internal") ? data["internal"].get_bool() : false;
const bool watchOnly = data.exists("watchonly") ? data["watchonly"].get_bool() : false;
if (data.exists("range")) {
throw JSONRPCError(RPC_INVALID_PARAMETER, "Range should not be specified for a non-descriptor import");
}
// Generate the script and destination for the scriptPubKey provided
CScript script;
if (!isScript) {
CTxDestination dest = DecodeDestination(output);
if (!IsValidDestination(dest)) {
throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY, "Invalid address \"" + output + "\"");
}