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[Wallet] add rescanblockchain <start_height> <stop_height> RPC command

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This commit is contained in:
Jonas Schnelli
2015-11-19 16:05:37 +01:00
parent 777519bd96
commit c77170fbdb
6 changed files with 97 additions and 8 deletions
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77
src/wallet/rpcwallet.cpp
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@@ -3169,6 +3169,81 @@ UniValue generate(const JSONRPCRequest& request)
return generateBlocks(coinbase_script, num_generate, max_tries, true);
}
UniValue rescanblockchain(const JSONRPCRequest& request)
{
CWallet * const pwallet = GetWalletForJSONRPCRequest(request);
if (!EnsureWalletIsAvailable(pwallet, request.fHelp)) {
return NullUniValue;
}
if (request.fHelp || request.params.size() > 2) {
throw std::runtime_error(
"rescanblockchain (\"start_height\") (\"stop_height\")\n"
"\nRescan the local blockchain for wallet related transactions.\n"
"\nArguments:\n"
"1. \"start_height\" (numeric, optional) block height where the rescan should start\n"
"2. \"stop_height\" (numeric, optional) the last block height that should be scanned\n"
"\nResult:\n"
"{\n"
" \"start_height\" (numeric) The block height where the rescan has started. If omitted, rescan started from the genesis block.\n"
" \"stop_height\" (numeric) The height of the last rescanned block. If omitted, rescan stopped at the chain tip.\n"
"}\n"
"\nExamples:\n"
+ HelpExampleCli("rescanblockchain", "100000 120000")
+ HelpExampleRpc("rescanblockchain", "100000 120000")
);
}
LOCK2(cs_main, pwallet->cs_wallet);
CBlockIndex *pindexStart = chainActive.Genesis();
CBlockIndex *pindexStop = nullptr;
if (!request.params[0].isNull()) {
pindexStart = chainActive[request.params[0].get_int()];
if (!pindexStart) {
throw JSONRPCError(RPC_INVALID_PARAMETER, "Invalid start_height");
}
}
if (!request.params[1].isNull()) {
pindexStop = chainActive[request.params[1].get_int()];
if (!pindexStop) {
throw JSONRPCError(RPC_INVALID_PARAMETER, "Invalid stop_height");
}
else if (pindexStop->nHeight < pindexStart->nHeight) {
throw JSONRPCError(RPC_INVALID_PARAMETER, "stop_height must be greater then start_height");
}
}
// We can't rescan beyond non-pruned blocks, stop and throw an error
if (fPruneMode) {
CBlockIndex *block = pindexStop ? pindexStop : chainActive.Tip();
while (block && block->nHeight >= pindexStart->nHeight) {
if (!(block->nStatus & BLOCK_HAVE_DATA)) {
throw JSONRPCError(RPC_MISC_ERROR, "Can't rescan beyond pruned data. Use RPC call getblockchaininfo to determine your pruned height.");
}
block = block->pprev;
}
}
CBlockIndex *stopBlock = pwallet->ScanForWalletTransactions(pindexStart, pindexStop, true);
if (!stopBlock) {
if (pwallet->IsAbortingRescan()) {
throw JSONRPCError(RPC_MISC_ERROR, "Rescan aborted.");
}
// if we got a nullptr returned, ScanForWalletTransactions did rescan up to the requested stopindex
stopBlock = pindexStop ? pindexStop : chainActive.Tip();
}
else {
throw JSONRPCError(RPC_MISC_ERROR, "Rescan failed. Potentially corrupted data files.");
}
UniValue response(UniValue::VOBJ);
response.pushKV("start_height", pindexStart->nHeight);
response.pushKV("stop_height", stopBlock->nHeight);
return response;
}
extern UniValue abortrescan(const JSONRPCRequest& request); // in rpcdump.cpp
extern UniValue dumpprivkey(const JSONRPCRequest& request); // in rpcdump.cpp
extern UniValue importprivkey(const JSONRPCRequest& request);
@@ -3179,6 +3254,7 @@ extern UniValue importwallet(const JSONRPCRequest& request);
extern UniValue importprunedfunds(const JSONRPCRequest& request);
extern UniValue removeprunedfunds(const JSONRPCRequest& request);
extern UniValue importmulti(const JSONRPCRequest& request);
extern UniValue rescanblockchain(const JSONRPCRequest& request);
static const CRPCCommand commands[] =
{ // category name actor (function) argNames
@@ -3233,6 +3309,7 @@ static const CRPCCommand commands[] =
{ "wallet", "walletpassphrasechange", &walletpassphrasechange, {"oldpassphrase","newpassphrase"} },
{ "wallet", "walletpassphrase", &walletpassphrase, {"passphrase","timeout"} },
{ "wallet", "removeprunedfunds", &removeprunedfunds, {"txid"} },
{ "wallet", "rescanblockchain", &rescanblockchain, {"start_height", "stop_height"} },
{ "generating", "generate", &generate, {"nblocks","maxtries"} },
};