diff options
| -rw-r--r-- | src/main.cpp | 22 | ||||
| -rw-r--r-- | src/rpcwallet.cpp | 27 |
2 files changed, 21 insertions, 28 deletions
diff --git a/src/main.cpp b/src/main.cpp index 34b4c51d5f..b6a61f7da1 100644 --- a/src/main.cpp +++ b/src/main.cpp @@ -3355,19 +3355,17 @@ void static ProcessGetData(CNode* pfrom) BlockMap::iterator mi = mapBlockIndex.find(inv.hash); if (mi != mapBlockIndex.end()) { - // If the requested block is at a height below our last - // checkpoint, only serve it if it's in the checkpointed chain - int nHeight = mi->second->nHeight; - CBlockIndex* pcheckpoint = Checkpoints::GetLastCheckpoint(); - if (pcheckpoint && nHeight < pcheckpoint->nHeight) { - if (!chainActive.Contains(mi->second)) - { - LogPrintf("ProcessGetData(): ignoring request for old block that isn't in the main chain\n"); - } else { - send = true; - } - } else { + if (chainActive.Contains(mi->second)) { send = true; + } else { + // To prevent fingerprinting attacks, only send blocks outside of the active + // chain if they are valid, and no more than a month older than the best header + // chain we know about. + send = mi->second->IsValid(BLOCK_VALID_SCRIPTS) && (pindexBestHeader != NULL) && + (mi->second->GetBlockTime() > pindexBestHeader->GetBlockTime() - 30 * 24 * 60 * 60); + if (!send) { + LogPrintf("ProcessGetData(): ignoring request from peer=%i for old block that isn't in the main chain\n", pfrom->GetId()); + } } } if (send) diff --git a/src/rpcwallet.cpp b/src/rpcwallet.cpp index 1afc3c910e..d097b6a0fa 100644 --- a/src/rpcwallet.cpp +++ b/src/rpcwallet.cpp @@ -19,6 +19,7 @@ #include <stdint.h> #include <boost/assign/list_of.hpp> + #include "json/json_spirit_utils.h" #include "json/json_spirit_value.h" @@ -316,35 +317,29 @@ Value getaddressesbyaccount(const Array& params, bool fHelp) return ret; } -void SendMoney(const CTxDestination &address, CAmount nValue, CWalletTx& wtxNew) +static void SendMoney(const CTxDestination &address, CAmount nValue, CWalletTx& wtxNew) { + CAmount curBalance = pwalletMain->GetBalance(); + // Check amount if (nValue <= 0) throw JSONRPCError(RPC_INVALID_PARAMETER, "Invalid amount"); - if (nValue > pwalletMain->GetBalance()) + if (nValue > curBalance) throw JSONRPCError(RPC_WALLET_INSUFFICIENT_FUNDS, "Insufficient funds"); - string strError; - if (pwalletMain->IsLocked()) - { - strError = "Error: Wallet locked, unable to create transaction!"; - LogPrintf("SendMoney(): %s", strError); - throw JSONRPCError(RPC_WALLET_ERROR, strError); - } - // Parse Bitcoin address CScript scriptPubKey = GetScriptForDestination(address); // Create and send the transaction CReserveKey reservekey(pwalletMain); CAmount nFeeRequired; - if (!pwalletMain->CreateTransaction(scriptPubKey, nValue, wtxNew, reservekey, nFeeRequired, strError)) - { - if (nValue + nFeeRequired > pwalletMain->GetBalance()) - strError = strprintf("Error: This transaction requires a transaction fee of at least %s because of its amount, complexity, or use of recently received funds!", FormatMoney(nFeeRequired)); - LogPrintf("SendMoney(): %s\n", strError); - throw JSONRPCError(RPC_WALLET_ERROR, strError); + std::string strError; + if (!pwalletMain->CreateTransaction(scriptPubKey, nValue, wtxNew, reservekey, nFeeRequired, strError)) { + if (nValue + nFeeRequired > curBalance) + throw JSONRPCError(RPC_WALLET_ERROR, strprintf("Error: This transaction requires a transaction fee of at least %s because of its amount, complexity, or use of recently received funds!", FormatMoney(nFeeRequired))); + else + throw JSONRPCError(RPC_WALLET_ERROR, strError); } if (!pwalletMain->CommitTransaction(wtxNew, reservekey)) throw JSONRPCError(RPC_WALLET_ERROR, "Error: The transaction was rejected! This might happen if some of the coins in your wallet were already spent, such as if you used a copy of wallet.dat and coins were spent in the copy but not marked as spent here."); |