#include "rpcserver.h"
#include "streams.h"
#include "sync.h"
+#include "txmempool.h"
#include "utilstrencodings.h"
#include "version.h"
#include <boost/algorithm/string.hpp>
+#include <boost/dynamic_bitset.hpp>
using namespace std;
using namespace json_spirit;
+static const int MAX_GETUTXOS_OUTPOINTS = 100; //allow a max of 100 outpoints to be queried at once
+
enum RetFormat {
RF_UNDEF,
RF_BINARY,
{RF_JSON, "json"},
};
+struct CCoin {
+ uint32_t nTxVer; // Don't call this nVersion, that name has a special meaning inside IMPLEMENT_SERIALIZE
+ uint32_t nHeight;
+ CTxOut out;
+
+ ADD_SERIALIZE_METHODS;
+
+ template <typename Stream, typename Operation>
+ inline void SerializationOp(Stream& s, Operation ser_action, int nType, int nVersion)
+ {
+ READWRITE(nTxVer);
+ READWRITE(nHeight);
+ READWRITE(out);
+ }
+};
+
class RestErr
{
public:
extern void TxToJSON(const CTransaction& tx, const uint256 hashBlock, Object& entry);
extern Object blockToJSON(const CBlock& block, const CBlockIndex* blockindex, bool txDetails = false);
+extern void ScriptPubKeyToJSON(const CScript& scriptPubKey, Object& out, bool fIncludeHex);
static RestErr RESTERR(enum HTTPStatusCode status, string message)
{
}
static bool rest_headers(AcceptedConnection* conn,
- const std::string& strReq,
+ const std::string& strURIPart,
+ const std::string& strRequest,
const std::map<std::string, std::string>& mapHeaders,
bool fRun)
{
vector<string> params;
- const RetFormat rf = ParseDataFormat(params, strReq);
+ const RetFormat rf = ParseDataFormat(params, strURIPart);
vector<string> path;
boost::split(path, params[0], boost::is_any_of("/"));
}
static bool rest_block(AcceptedConnection* conn,
- const std::string& strReq,
+ const std::string& strURIPart,
+ const std::string& strRequest,
const std::map<std::string, std::string>& mapHeaders,
bool fRun,
bool showTxDetails)
{
vector<string> params;
- const RetFormat rf = ParseDataFormat(params, strReq);
+ const RetFormat rf = ParseDataFormat(params, strURIPart);
string hashStr = params[0];
uint256 hash;
}
static bool rest_block_extended(AcceptedConnection* conn,
- const std::string& strReq,
+ const std::string& strURIPart,
+ const std::string& strRequest,
const std::map<std::string, std::string>& mapHeaders,
bool fRun)
{
- return rest_block(conn, strReq, mapHeaders, fRun, true);
+ return rest_block(conn, strURIPart, strRequest, mapHeaders, fRun, true);
}
static bool rest_block_notxdetails(AcceptedConnection* conn,
- const std::string& strReq,
+ const std::string& strURIPart,
+ const std::string& strRequest,
const std::map<std::string, std::string>& mapHeaders,
bool fRun)
{
- return rest_block(conn, strReq, mapHeaders, fRun, false);
+ return rest_block(conn, strURIPart, strRequest, mapHeaders, fRun, false);
}
static bool rest_chaininfo(AcceptedConnection* conn,
- const std::string& strReq,
- const std::map<std::string, std::string>& mapHeaders,
- bool fRun)
+ const std::string& strURIPart,
+ const std::string& strRequest,
+ const std::map<std::string, std::string>& mapHeaders,
+ bool fRun)
{
vector<string> params;
- const RetFormat rf = ParseDataFormat(params, strReq);
+ const RetFormat rf = ParseDataFormat(params, strURIPart);
switch (rf) {
case RF_JSON: {
}
static bool rest_tx(AcceptedConnection* conn,
- const std::string& strReq,
+ const std::string& strURIPart,
+ const std::string& strRequest,
const std::map<std::string, std::string>& mapHeaders,
bool fRun)
{
vector<string> params;
- const RetFormat rf = ParseDataFormat(params, strReq);
+ const RetFormat rf = ParseDataFormat(params, strURIPart);
string hashStr = params[0];
uint256 hash;
return true; // continue to process further HTTP reqs on this cxn
}
+static bool rest_getutxos(AcceptedConnection* conn,
+ const std::string& strURIPart,
+ const std::string& strRequest,
+ const std::map<std::string, std::string>& mapHeaders,
+ bool fRun)
+{
+ vector<string> params;
+ enum RetFormat rf = ParseDataFormat(params, strURIPart);
+
+ // throw exception in case of a empty request
+ if (strRequest.length() == 0)
+ throw RESTERR(HTTP_INTERNAL_SERVER_ERROR, "Error: empty request");
+
+ bool fCheckMemPool = false;
+ vector<COutPoint> vOutPoints;
+
+ // parse/deserialize input
+ // input-format = output-format, rest/getutxos/bin requires binary input, gives binary output, ...
+
+ string strRequestMutable = strRequest; //convert const string to string for allowing hex to bin converting
+
+ switch (rf) {
+ case RF_HEX: {
+ // convert hex to bin, continue then with bin part
+ std::vector<unsigned char> strRequestV = ParseHex(strRequest);
+ strRequestMutable.assign(strRequestV.begin(), strRequestV.end());
+ }
+
+ case RF_BINARY: {
+ try {
+ //deserialize
+ CDataStream oss(SER_NETWORK, PROTOCOL_VERSION);
+ oss << strRequestMutable;
+ oss >> fCheckMemPool;
+ oss >> vOutPoints;
+ } catch (const std::ios_base::failure& e) {
+ // abort in case of unreadable binary data
+ throw RESTERR(HTTP_INTERNAL_SERVER_ERROR, "Parse error");
+ }
+ break;
+ }
+
+ case RF_JSON: {
+ try {
+ // parse json request
+ Value valRequest;
+ if (!read_string(strRequest, valRequest))
+ throw RESTERR(HTTP_INTERNAL_SERVER_ERROR, "Parse error");
+
+ Object jsonObject = valRequest.get_obj();
+ const Value& checkMempoolValue = find_value(jsonObject, "checkmempool");
+
+ if (!checkMempoolValue.is_null()) {
+ fCheckMemPool = checkMempoolValue.get_bool();
+ }
+ const Value& outpointsValue = find_value(jsonObject, "outpoints");
+ if (!outpointsValue.is_null()) {
+ Array outPoints = outpointsValue.get_array();
+ BOOST_FOREACH (const Value& outPoint, outPoints) {
+ Object outpointObject = outPoint.get_obj();
+ uint256 txid = ParseHashO(outpointObject, "txid");
+ Value nValue = find_value(outpointObject, "n");
+ int nOutput = nValue.get_int();
+ vOutPoints.push_back(COutPoint(txid, nOutput));
+ }
+ }
+ } catch (...) {
+ // return HTTP 500 if there was a json parsing error
+ throw RESTERR(HTTP_INTERNAL_SERVER_ERROR, "Parse error");
+ }
+ break;
+ }
+ default: {
+ throw RESTERR(HTTP_NOT_FOUND, "output format not found (available: " + AvailableDataFormatsString() + ")");
+ }
+ }
+
+ // limit max outpoints
+ if (vOutPoints.size() > MAX_GETUTXOS_OUTPOINTS)
+ throw RESTERR(HTTP_INTERNAL_SERVER_ERROR, strprintf("Error: max outpoints exceeded (max: %d, tried: %d)", MAX_GETUTXOS_OUTPOINTS, vOutPoints.size()));
+
+ // check spentness and form a bitmap (as well as a JSON capable human-readble string representation)
+ vector<unsigned char> bitmap;
+ vector<CCoin> outs;
+ std::string bitmapStringRepresentation;
+ boost::dynamic_bitset<unsigned char> hits(vOutPoints.size());
+ {
+ LOCK2(cs_main, mempool.cs);
+
+ CCoinsView viewDummy;
+ CCoinsViewCache view(&viewDummy);
+
+ CCoinsViewCache& viewChain = *pcoinsTip;
+ CCoinsViewMemPool viewMempool(&viewChain, mempool);
+
+ if (fCheckMemPool)
+ view.SetBackend(viewMempool); // switch cache backend to db+mempool in case user likes to query mempool
+
+ for (size_t i = 0; i < vOutPoints.size(); i++) {
+ CCoins coins;
+ uint256 hash = vOutPoints[i].hash;
+ if (view.GetCoins(hash, coins)) {
+ mempool.pruneSpent(hash, coins);
+ if (coins.IsAvailable(vOutPoints[i].n)) {
+ hits[i] = true;
+ // Safe to index into vout here because IsAvailable checked if it's off the end of the array, or if
+ // n is valid but points to an already spent output (IsNull).
+ CCoin coin;
+ coin.nTxVer = coins.nVersion;
+ coin.nHeight = coins.nHeight;
+ coin.out = coins.vout.at(vOutPoints[i].n);
+ assert(!coin.out.IsNull());
+ outs.push_back(coin);
+ }
+ }
+
+ bitmapStringRepresentation.append(hits[i] ? "1" : "0"); // form a binary string representation (human-readable for json output)
+ }
+ }
+ boost::to_block_range(hits, std::back_inserter(bitmap));
+
+ switch (rf) {
+ case RF_BINARY: {
+ // serialize data
+ // use exact same output as mentioned in Bip64
+ CDataStream ssGetUTXOResponse(SER_NETWORK, PROTOCOL_VERSION);
+ ssGetUTXOResponse << chainActive.Height() << chainActive.Tip()->GetBlockHash() << bitmap << outs;
+ string ssGetUTXOResponseString = ssGetUTXOResponse.str();
+
+ conn->stream() << HTTPReplyHeader(HTTP_OK, fRun, ssGetUTXOResponseString.size(), "application/octet-stream") << ssGetUTXOResponseString << std::flush;
+ return true;
+ }
+
+ case RF_HEX: {
+ CDataStream ssGetUTXOResponse(SER_NETWORK, PROTOCOL_VERSION);
+ ssGetUTXOResponse << chainActive.Height() << chainActive.Tip()->GetBlockHash() << bitmap << outs;
+ string strHex = HexStr(ssGetUTXOResponse.begin(), ssGetUTXOResponse.end()) + "\n";
+
+ conn->stream() << HTTPReply(HTTP_OK, strHex, fRun, false, "text/plain") << std::flush;
+ return true;
+ }
+
+ case RF_JSON: {
+ Object objGetUTXOResponse;
+
+ // pack in some essentials
+ // use more or less the same output as mentioned in Bip64
+ objGetUTXOResponse.push_back(Pair("chainHeight", chainActive.Height()));
+ objGetUTXOResponse.push_back(Pair("chaintipHash", chainActive.Tip()->GetBlockHash().GetHex()));
+ objGetUTXOResponse.push_back(Pair("bitmap", bitmapStringRepresentation));
+
+ Array utxos;
+ BOOST_FOREACH (const CCoin& coin, outs) {
+ Object utxo;
+ utxo.push_back(Pair("txvers", (int32_t)coin.nTxVer));
+ utxo.push_back(Pair("height", (int32_t)coin.nHeight));
+ utxo.push_back(Pair("value", ValueFromAmount(coin.out.nValue)));
+
+ // include the script in a json output
+ Object o;
+ ScriptPubKeyToJSON(coin.out.scriptPubKey, o, true);
+ utxo.push_back(Pair("scriptPubKey", o));
+ utxos.push_back(utxo);
+ }
+ objGetUTXOResponse.push_back(Pair("utxos", utxos));
+
+ // return json string
+ string strJSON = write_string(Value(objGetUTXOResponse), false) + "\n";
+ conn->stream() << HTTPReply(HTTP_OK, strJSON, fRun) << std::flush;
+ return true;
+ }
+ default: {
+ throw RESTERR(HTTP_NOT_FOUND, "output format not found (available: " + AvailableDataFormatsString() + ")");
+ }
+ }
+
+ // not reached
+ return true; // continue to process further HTTP reqs on this cxn
+}
+
static const struct {
const char* prefix;
bool (*handler)(AcceptedConnection* conn,
- const std::string& strURI,
+ const std::string& strURIPart,
+ const std::string& strRequest,
const std::map<std::string, std::string>& mapHeaders,
bool fRun);
} uri_prefixes[] = {
{"/rest/block/", rest_block_extended},
{"/rest/chaininfo", rest_chaininfo},
{"/rest/headers/", rest_headers},
+ {"/rest/getutxos", rest_getutxos},
};
bool HTTPReq_REST(AcceptedConnection* conn,
const std::string& strURI,
+ const string& strRequest,
const std::map<std::string, std::string>& mapHeaders,
bool fRun)
{
for (unsigned int i = 0; i < ARRAYLEN(uri_prefixes); i++) {
unsigned int plen = strlen(uri_prefixes[i].prefix);
if (strURI.substr(0, plen) == uri_prefixes[i].prefix) {
- string strReq = strURI.substr(plen);
- return uri_prefixes[i].handler(conn, strReq, mapHeaders, fRun);
+ string strURIPart = strURI.substr(plen);
+ return uri_prefixes[i].handler(conn, strURIPart, strRequest, mapHeaders, fRun);
}
}
} catch (const RestErr& re) {
projects / VerusCoin.git / blobdiff