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Add dumpwallet and importwallet RPCs

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dumpwallet: produce a dump of all keys in a wallet, in a format
compatible with Bitcoin Wallet for Android and Multibit.

importwallet: import such a dump
This commit is contained in:
Pieter Wuille 2013-04-29 19:50:56 +02:00
parent 434e4273b9
commit 4e534aa9d8
3 changed files with 195 additions and 16 deletions
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2
src/bitcoinrpc.cpp
View file

@ -243,7 +243,9 @@ static const CRPCCommand vRPCCommands[] =
{ "submitblock", &submitblock, false, false },
{ "listsinceblock", &listsinceblock, false, false },
{ "dumpprivkey", &dumpprivkey, true, false },
{ "dumpwallet", &dumpwallet, true, false },
{ "importprivkey", &importprivkey, false, false },
{ "importwallet", &importwallet, false, false },
{ "listunspent", &listunspent, false, false },
{ "getrawtransaction", &getrawtransaction, false, false },
{ "createrawtransaction", &createrawtransaction, false, false },

3
src/bitcoinrpc.h
View file

@ -145,8 +145,11 @@ extern json_spirit::Value getconnectioncount(const json_spirit::Array& params, b
extern json_spirit::Value getpeerinfo(const json_spirit::Array& params, bool fHelp);
extern json_spirit::Value addnode(const json_spirit::Array& params, bool fHelp);
extern json_spirit::Value getaddednodeinfo(const json_spirit::Array& params, bool fHelp);
extern json_spirit::Value dumpprivkey(const json_spirit::Array& params, bool fHelp); // in rpcdump.cpp
extern json_spirit::Value importprivkey(const json_spirit::Array& params, bool fHelp);
extern json_spirit::Value dumpwallet(const json_spirit::Array& params, bool fHelp);
extern json_spirit::Value importwallet(const json_spirit::Array& params, bool fHelp);
extern json_spirit::Value getgenerate(const json_spirit::Array& params, bool fHelp); // in rpcmining.cpp
extern json_spirit::Value setgenerate(const json_spirit::Array& params, bool fHelp);

206
src/rpcdump.cpp
View file

@ -2,35 +2,68 @@
// Distributed under the MIT/X11 software license, see the accompanying
// file COPYING or http://www.opensource.org/licenses/mit-license.php.
#include <iostream>
#include <fstream>
#include "init.h" // for pwalletMain
#include "bitcoinrpc.h"
#include "ui_interface.h"
#include "base58.h"
#include <boost/date_time/posix_time/posix_time.hpp>
#include <boost/lexical_cast.hpp>
#include <boost/variant/get.hpp>
#include <boost/algorithm/string.hpp>
#define printf OutputDebugStringF
using namespace json_spirit;
using namespace std;
class CTxDump
{
public:
CBlockIndex *pindex;
int64 nValue;
bool fSpent;
CWalletTx* ptx;
int nOut;
CTxDump(CWalletTx* ptx = NULL, int nOut = -1)
{
pindex = NULL;
nValue = 0;
fSpent = false;
this->ptx = ptx;
this->nOut = nOut;
void EnsureWalletIsUnlocked();
std::string static EncodeDumpTime(int64 nTime) {
return DateTimeStrFormat("%Y-%m-%dT%H:%M:%SZ", nTime);
}
int64 static DecodeDumpTime(const std::string &str) {
static const boost::posix_time::time_input_facet facet("%Y-%m-%dT%H:%M:%SZ");
static const boost::posix_time::ptime epoch = boost::posix_time::from_time_t(0);
const std::locale loc(std::locale::classic(), &facet);
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;
BOOST_FOREACH(unsigned char c, str) {
if (c <= 32 || c >= 128 || c == '%') {
ret << '%' << HexStr(&c, &c + 1);
} else {
ret << c;
}
}
};
return ret.str();
}
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();
}
Value importprivkey(const Array& params, bool fHelp)
{
@ -63,6 +96,10 @@ Value importprivkey(const Array& params, bool fHelp)
pwalletMain->MarkDirty();
pwalletMain->SetAddressBookName(vchAddress, strLabel);
// Don't throw error in case a key is already there
if (pwalletMain->HaveKey(vchAddress))
return Value::null;
if (!pwalletMain->AddKeyPubKey(key, pubkey))
throw JSONRPCError(RPC_WALLET_ERROR, "Error adding key to wallet");
@ -75,6 +112,86 @@ Value importprivkey(const Array& params, bool fHelp)
return Value::null;
}
Value importwallet(const Array& params, bool fHelp)
{
if (fHelp || params.size() != 1)
throw runtime_error(
"importwallet <filename>\n"
"Imports keys from a wallet dump file (see dumpwallet).");
EnsureWalletIsUnlocked();
ifstream file;
file.open(params[0].get_str().c_str());
if (!file.is_open())
throw JSONRPCError(RPC_INVALID_PARAMETER, "Cannot open wallet dump file");
int64 nTimeBegin = pindexBest->nTime;
bool fGood = true;
while (file.good()) {
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;
CBitcoinSecret vchSecret;
if (!vchSecret.SetString(vstr[0]))
continue;
CKey key = vchSecret.GetKey();
CPubKey pubkey = key.GetPubKey();
CKeyID keyid = pubkey.GetID();
if (pwalletMain->HaveKey(keyid)) {
printf("Skipping import of %s (key already present)\n", CBitcoinAddress(keyid).ToString().c_str());
continue;
}
int64 nTime = DecodeDumpTime(vstr[1]);
std::string strLabel;
bool fLabel = true;
for (unsigned int nStr = 2; nStr < vstr.size(); nStr++) {
if (boost::algorithm::starts_with(vstr[nStr], "#"))
break;
if (vstr[nStr] == "change=1")
fLabel = false;
if (vstr[nStr] == "reserve=1")
fLabel = false;
if (boost::algorithm::starts_with(vstr[nStr], "label=")) {
strLabel = DecodeDumpString(vstr[nStr].substr(6));
fLabel = true;
}
}
printf("Importing %s...\n", CBitcoinAddress(keyid).ToString().c_str());
if (!pwalletMain->AddKeyPubKey(key, pubkey)) {
fGood = false;
continue;
}
pwalletMain->mapKeyMetadata[keyid].nCreateTime = nTime;
if (fLabel)
pwalletMain->SetAddressBookName(keyid, strLabel);
nTimeBegin = std::min(nTimeBegin, nTime);
}
file.close();
CBlockIndex *pindex = pindexBest;
while (pindex && pindex->pprev && pindex->nTime > nTimeBegin - 7200)
pindex = pindex->pprev;
printf("Rescanning last %i blocks\n", pindexBest->nHeight - pindex->nHeight + 1);
pwalletMain->ScanForWalletTransactions(pindex);
pwalletMain->ReacceptWalletTransactions();
pwalletMain->MarkDirty();
if (!fGood)
throw JSONRPCError(RPC_WALLET_ERROR, "Error adding some keys to wallet");
return Value::null;
}
Value dumpprivkey(const Array& params, bool fHelp)
{
if (fHelp || params.size() != 1)
@ -82,6 +199,8 @@ Value dumpprivkey(const Array& params, bool fHelp)
"dumpprivkey <bitcoinaddress>\n"
"Reveals the private key corresponding to <bitcoinaddress>.");
EnsureWalletIsUnlocked();
string strAddress = params[0].get_str();
CBitcoinAddress address;
if (!address.SetString(strAddress))
@ -94,3 +213,58 @@ Value dumpprivkey(const Array& params, bool fHelp)
throw JSONRPCError(RPC_WALLET_ERROR, "Private key for address " + strAddress + " is not known");
return CBitcoinSecret(vchSecret).ToString();
}
Value dumpwallet(const Array& params, bool fHelp)
{
if (fHelp || params.size() != 1)
throw runtime_error(
"dumpwallet <filename>\n"
"Dumps all wallet keys in a human-readable format.");
EnsureWalletIsUnlocked();
ofstream file;
file.open(params[0].get_str().c_str());
if (!file.is_open())
throw JSONRPCError(RPC_INVALID_PARAMETER, "Cannot open wallet dump file");
std::map<CKeyID, int64> mapKeyBirth;
std::set<CKeyID> setKeyPool;
pwalletMain->GetKeyBirthTimes(mapKeyBirth);
pwalletMain->GetAllReserveKeys(setKeyPool);
// sort time/key pairs
std::vector<std::pair<int64, CKeyID> > vKeyBirth;
for (std::map<CKeyID, int64>::const_iterator it = mapKeyBirth.begin(); it != mapKeyBirth.end(); it++) {
vKeyBirth.push_back(std::make_pair(it->second, it->first));
}
mapKeyBirth.clear();
std::sort(vKeyBirth.begin(), vKeyBirth.end());
// produce output
file << strprintf("# Wallet dump created by Bitcoin %s (%s)\n", CLIENT_BUILD.c_str(), CLIENT_DATE.c_str());
file << strprintf("# * Created on %s\n", EncodeDumpTime(GetTime()).c_str());
file << strprintf("# * Best block at time of backup was %i (%s),\n", nBestHeight, hashBestChain.ToString().c_str());
file << strprintf("# mined on %s\n", EncodeDumpTime(pindexBest->nTime).c_str());
file << "\n";
for (std::vector<std::pair<int64, CKeyID> >::const_iterator it = vKeyBirth.begin(); it != vKeyBirth.end(); it++) {
const CKeyID &keyid = it->second;
std::string strTime = EncodeDumpTime(it->first);
std::string strAddr = CBitcoinAddress(keyid).ToString();
CKey key;
if (pwalletMain->GetKey(keyid, key)) {
if (pwalletMain->mapAddressBook.count(keyid)) {
file << strprintf("%s %s label=%s # addr=%s\n", CBitcoinSecret(key).ToString().c_str(), strTime.c_str(), EncodeDumpString(pwalletMain->mapAddressBook[keyid]).c_str(), strAddr.c_str());
} else if (setKeyPool.count(keyid)) {
file << strprintf("%s %s reserve=1 # addr=%s\n", CBitcoinSecret(key).ToString().c_str(), strTime.c_str(), strAddr.c_str());
} else {
file << strprintf("%s %s change=1 # addr=%s\n", CBitcoinSecret(key).ToString().c_str(), strTime.c_str(), strAddr.c_str());
}
}
}
file << "\n";
file << "# End of dump\n";
file.close();
return Value::null;
}