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Add synced key to getinfo+getblockchaininfo

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This addresses #3 of upstream issue
https://github.com/zcash/zcash/issues/3996 .

Any software that creates a transaction outside of the RPC interface
MUST check if synced==true beforehand, otherwise metadata leakage which
leads to linkability analysis is possible.

The z_sendmany, z_shieldcoinbase and z_mergetoaddress RPCs have their
own synced checks, so it's not needed to look at this new synced value
when using those RPCs.
This commit is contained in:
Jonathan "Duke" Leto
2019-05-15 22:07:09 -07:00
parent 8b57ca63b8
commit 3275b435de
2 changed files with 5 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
src/rpc/blockchain.cpp
View File

@@ -48,6 +48,7 @@
using namespace std;
extern int32_t KOMODO_INSYNC;
extern void TxToJSON(const CTransaction& tx, const uint256 hashBlock, UniValue& entry);
void ScriptPubKeyToJSON(const CScript& scriptPubKey, UniValue& out, bool fIncludeHex);
#include "komodo_defs.h"
@@ -1689,6 +1690,7 @@ UniValue getblockchaininfo(const UniValue& params, bool fHelp)
UniValue obj(UniValue::VOBJ);
obj.push_back(Pair("chain", Params().NetworkIDString()));
obj.push_back(Pair("blocks", (int)chainActive.Height()));
obj.push_back(Pair("synced", KOMODO_INSYNC!=0));
obj.push_back(Pair("headers", pindexBestHeader ? pindexBestHeader->GetHeight() : -1));
obj.push_back(Pair("bestblockhash", chainActive.LastTip()->GetBlockHash().GetHex()));
obj.push_back(Pair("difficulty", (double)GetNetworkDifficulty()));
@@ -2082,4 +2084,4 @@ void RegisterBlockchainRPCCommands(CRPCTable &tableRPC)
{
for (unsigned int vcidx = 0; vcidx < ARRAYLEN(commands); vcidx++)
tableRPC.appendCommand(commands[vcidx].name, &commands[vcidx]);
}
}

3
src/rpc/misc.cpp
View File

@@ -69,7 +69,7 @@ bool komodo_txnotarizedconfirmed(uint256 txid);
uint32_t komodo_chainactive_timestamp();
int32_t komodo_whoami(char *pubkeystr,int32_t height,uint32_t timestamp);
extern uint64_t KOMODO_INTERESTSUM,KOMODO_WALLETBALANCE;
extern int32_t KOMODO_LASTMINED,JUMBLR_PAUSE,KOMODO_LONGESTCHAIN,IS_STAKED_NOTARY,IS_KOMODO_NOTARY,STAKED_ERA;
extern int32_t KOMODO_LASTMINED,JUMBLR_PAUSE,KOMODO_LONGESTCHAIN,IS_STAKED_NOTARY,IS_KOMODO_NOTARY,STAKED_ERA,KOMODO_INSYNC;
extern char ASSETCHAINS_SYMBOL[KOMODO_ASSETCHAIN_MAXLEN];
uint32_t komodo_segid32(char *coinaddr);
int64_t komodo_coinsupply(int64_t *zfundsp,int64_t *sproutfundsp,int32_t height);
@@ -237,6 +237,7 @@ UniValue getinfo(const UniValue& params, bool fHelp)
obj.push_back(Pair("version", CLIENT_VERSION));
obj.push_back(Pair("protocolversion", PROTOCOL_VERSION));
obj.push_back(Pair("KMDversion", KOMODO_VERSION));
obj.push_back(Pair("synced", KOMODO_INSYNC!=0));
//obj.push_back(Pair("VRSCversion", VERUS_VERSION));
obj.push_back(Pair("notarized", notarized_height));
obj.push_back(Pair("prevMoMheight", prevMoMheight));