aboutsummaryrefslogtreecommitdiff
path: root/src
diff options
context:
space:
mode:
Diffstat (limited to 'src')
-rw-r--r--src/rpcclient.cpp1
-rw-r--r--src/rpcrawtransaction.cpp114
-rw-r--r--src/rpcserver.cpp2
-rw-r--r--src/rpcserver.h2
4 files changed, 119 insertions, 0 deletions
diff --git a/src/rpcclient.cpp b/src/rpcclient.cpp
index 428e1049dc..ad676f9edc 100644
--- a/src/rpcclient.cpp
+++ b/src/rpcclient.cpp
@@ -79,6 +79,7 @@ static const CRPCConvertParam vRPCConvertParams[] =
{ "sendrawtransaction", 1 },
{ "gettxout", 1 },
{ "gettxout", 2 },
+ { "gettxoutproof", 0 },
{ "lockunspent", 0 },
{ "lockunspent", 1 },
{ "importprivkey", 2 },
diff --git a/src/rpcrawtransaction.cpp b/src/rpcrawtransaction.cpp
index 8393a8502e..1e13f5dbba 100644
--- a/src/rpcrawtransaction.cpp
+++ b/src/rpcrawtransaction.cpp
@@ -9,6 +9,7 @@
#include "init.h"
#include "keystore.h"
#include "main.h"
+#include "merkleblock.h"
#include "net.h"
#include "rpcserver.h"
#include "script/script.h"
@@ -193,6 +194,119 @@ Value getrawtransaction(const Array& params, bool fHelp)
return result;
}
+Value gettxoutproof(const Array& params, bool fHelp)
+{
+ if (fHelp || (params.size() != 1 && params.size() != 2))
+ throw runtime_error(
+ "gettxoutproof [\"txid\",...] ( blockhash )\n"
+ "\nReturns a hex-encoded proof that \"txid\" was included in a block.\n"
+ "\nNOTE: By default this function only works sometimes. This is when there is an\n"
+ "unspent output in the utxo for this transaction. To make it always work,\n"
+ "you need to maintain a transaction index, using the -txindex command line option or\n"
+ "specify the block in which the transaction is included in manually (by blockhash).\n"
+ "\nReturn the raw transaction data.\n"
+ "\nArguments:\n"
+ "1. \"txids\" (string) A json array of txids to filter\n"
+ " [\n"
+ " \"txid\" (string) A transaction hash\n"
+ " ,...\n"
+ " ]\n"
+ "2. \"block hash\" (string, optional) If specified, looks for txid in the block with this hash\n"
+ "\nResult:\n"
+ "\"data\" (string) A string that is a serialized, hex-encoded data for the proof.\n"
+ );
+
+ set<uint256> setTxids;
+ uint256 oneTxid;
+ Array txids = params[0].get_array();
+ BOOST_FOREACH(Value& txid, txids) {
+ if (txid.get_str().length() != 64 || !IsHex(txid.get_str()))
+ throw JSONRPCError(RPC_INVALID_PARAMETER, string("Invalid txid ")+txid.get_str());
+ uint256 hash(uint256S(txid.get_str()));
+ if (setTxids.count(hash))
+ throw JSONRPCError(RPC_INVALID_PARAMETER, string("Invalid parameter, duplicated txid: ")+txid.get_str());
+ setTxids.insert(hash);
+ oneTxid = hash;
+ }
+
+ LOCK(cs_main);
+
+ CBlockIndex* pblockindex = NULL;
+
+ uint256 hashBlock;
+ if (params.size() > 1)
+ {
+ hashBlock = uint256S(params[1].get_str());
+ if (!mapBlockIndex.count(hashBlock))
+ throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY, "Block not found");
+ pblockindex = mapBlockIndex[hashBlock];
+ } else {
+ CCoins coins;
+ if (pcoinsTip->GetCoins(oneTxid, coins) && coins.nHeight > 0 && coins.nHeight <= chainActive.Height())
+ pblockindex = chainActive[coins.nHeight];
+ }
+
+ if (pblockindex == NULL)
+ {
+ CTransaction tx;
+ if (!GetTransaction(oneTxid, tx, hashBlock, false) || hashBlock.IsNull())
+ throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY, "Transaction not yet in block");
+ if (!mapBlockIndex.count(hashBlock))
+ throw JSONRPCError(RPC_INTERNAL_ERROR, "Transaction index corrupt");
+ pblockindex = mapBlockIndex[hashBlock];
+ }
+
+ CBlock block;
+ if(!ReadBlockFromDisk(block, pblockindex))
+ throw JSONRPCError(RPC_INTERNAL_ERROR, "Can't read block from disk");
+
+ unsigned int ntxFound = 0;
+ BOOST_FOREACH(const CTransaction&tx, block.vtx)
+ if (setTxids.count(tx.GetHash()))
+ ntxFound++;
+ if (ntxFound != setTxids.size())
+ throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY, "(Not all) transactions not found in specified block");
+
+ CDataStream ssMB(SER_NETWORK, PROTOCOL_VERSION);
+ CMerkleBlock mb(block, setTxids);
+ ssMB << mb;
+ std::string strHex = HexStr(ssMB.begin(), ssMB.end());
+ return strHex;
+}
+
+Value verifytxoutproof(const Array& params, bool fHelp)
+{
+ if (fHelp || params.size() != 1)
+ throw runtime_error(
+ "verifytxoutproof \"proof\"\n"
+ "\nVerifies that a proof points to a transaction in a block, returning the transaction it commits to\n"
+ "and throwing an RPC error if the block is not in our best chain\n"
+ "\nArguments:\n"
+ "1. \"proof\" (string, required) The hex-encoded proof generated by gettxoutproof\n"
+ "\nResult:\n"
+ "[\"txid\"] (array, strings) The txid(s) which the proof commits to, or empty array if the proof is invalid\n"
+ );
+
+ CDataStream ssMB(ParseHexV(params[0], "proof"), SER_NETWORK, PROTOCOL_VERSION);
+ CMerkleBlock merkleBlock;
+ ssMB >> merkleBlock;
+
+ Array res;
+
+ vector<uint256> vMatch;
+ if (merkleBlock.txn.ExtractMatches(vMatch) != merkleBlock.header.hashMerkleRoot)
+ return res;
+
+ LOCK(cs_main);
+
+ if (!mapBlockIndex.count(merkleBlock.header.GetHash()) || !chainActive.Contains(mapBlockIndex[merkleBlock.header.GetHash()]))
+ throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY, "Block not found in chain");
+
+ BOOST_FOREACH(const uint256& hash, vMatch)
+ res.push_back(hash.GetHex());
+ return res;
+}
+
Value createrawtransaction(const Array& params, bool fHelp)
{
if (fHelp || params.size() != 2)
diff --git a/src/rpcserver.cpp b/src/rpcserver.cpp
index e2df41fe21..61dda9125b 100644
--- a/src/rpcserver.cpp
+++ b/src/rpcserver.cpp
@@ -293,6 +293,8 @@ static const CRPCCommand vRPCCommands[] =
{ "blockchain", "getmempoolinfo", &getmempoolinfo, true },
{ "blockchain", "getrawmempool", &getrawmempool, true },
{ "blockchain", "gettxout", &gettxout, true },
+ { "blockchain", "gettxoutproof", &gettxoutproof, true },
+ { "blockchain", "verifytxoutproof", &verifytxoutproof, true },
{ "blockchain", "gettxoutsetinfo", &gettxoutsetinfo, true },
{ "blockchain", "verifychain", &verifychain, true },
diff --git a/src/rpcserver.h b/src/rpcserver.h
index c3200d8c35..790104f8c9 100644
--- a/src/rpcserver.h
+++ b/src/rpcserver.h
@@ -218,6 +218,8 @@ extern json_spirit::Value decoderawtransaction(const json_spirit::Array& params,
extern json_spirit::Value decodescript(const json_spirit::Array& params, bool fHelp);
extern json_spirit::Value signrawtransaction(const json_spirit::Array& params, bool fHelp);
extern json_spirit::Value sendrawtransaction(const json_spirit::Array& params, bool fHelp);
+extern json_spirit::Value gettxoutproof(const json_spirit::Array& params, bool fHelp);
+extern json_spirit::Value verifytxoutproof(const json_spirit::Array& params, bool fHelp);
extern json_spirit::Value getblockcount(const json_spirit::Array& params, bool fHelp); // in rpcblockchain.cpp
extern json_spirit::Value getbestblockhash(const json_spirit::Array& params, bool fHelp);
generated by cgit v1.2.3 (git 2.26.2) at 2024-11-15 07:00:52 +0000