/** Create a simulated `getinfo` request. */ UniValue PrepareRequest(const std::string& method, const std::vector<std::string>& args) override { if (!args.empty()) { throw std::runtime_error("-getinfo takes no arguments"); } UniValue result(UniValue::VARR); result.push_back(JSONRPCRequestObj("getnetworkinfo", NullUniValue, ID_NETWORKINFO)); result.push_back(JSONRPCRequestObj("getblockchaininfo", NullUniValue, ID_BLOCKCHAININFO)); result.push_back(JSONRPCRequestObj("getwalletinfo", NullUniValue, ID_WALLETINFO)); return result; }
UniValue PrepareRequest(const std::string& method, const std::vector<std::string>& args) override { UniValue params; if(gArgs.GetBoolArg("-named", DEFAULT_NAMED)) { params = RPCConvertNamedValues(method, args); } else { params = RPCConvertValues(method, args); } return JSONRPCRequestObj(method, params, 1); }
UniValue CallRPC(const std::string& strMethod, const UniValue& params) { std::string host = GetArg("-rpcconnect", DEFAULT_RPCCONNECT); int port = GetArg("-rpcport", BaseParams().RPCPort()); // Obtain event base raii_event_base base = obtain_event_base(); // Synchronously look up hostname raii_evhttp_connection evcon = obtain_evhttp_connection_base(base.get(), host, port); evhttp_connection_set_timeout(evcon.get(), GetArg("-rpcclienttimeout", DEFAULT_HTTP_CLIENT_TIMEOUT)); HTTPReply response; raii_evhttp_request req = obtain_evhttp_request(http_request_done, (void*)&response); if (req == NULL) throw std::runtime_error("create http request failed"); #if LIBEVENT_VERSION_NUMBER >= 0x02010300 evhttp_request_set_error_cb(req.get(), http_error_cb); #endif // Get credentials std::string strRPCUserColonPass; if (GetArg("-rpcpassword", "") == "") { // Try fall back to cookie-based authentication if no password is provided if (!GetAuthCookie(&strRPCUserColonPass)) { throw std::runtime_error(strprintf( _("Could not locate RPC credentials. No authentication cookie could be found, and no rpcpassword is set in the configuration file (%s)"), GetConfigFile(GetArg("-conf", BITCOIN_CONF_FILENAME)).string().c_str())); } } else { strRPCUserColonPass = GetArg("-rpcuser", "") + ":" + GetArg("-rpcpassword", ""); } struct evkeyvalq* output_headers = evhttp_request_get_output_headers(req.get()); assert(output_headers); evhttp_add_header(output_headers, "Host", host.c_str()); evhttp_add_header(output_headers, "Connection", "close"); evhttp_add_header(output_headers, "Authorization", (std::string("Basic ") + EncodeBase64(strRPCUserColonPass)).c_str()); // Attach request data std::string strRequest = JSONRPCRequestObj(strMethod, params, 1).write() + "\n"; struct evbuffer* output_buffer = evhttp_request_get_output_buffer(req.get()); assert(output_buffer); evbuffer_add(output_buffer, strRequest.data(), strRequest.size()); int r = evhttp_make_request(evcon.get(), req.get(), EVHTTP_REQ_POST, "/"); req.release(); // ownership moved to evcon in above call if (r != 0) { throw CConnectionFailed("send http request failed"); } event_base_dispatch(base.get()); if (response.status == 0) throw CConnectionFailed(strprintf("couldn't connect to server: %s (code %d)\n(make sure server is running and you are connecting to the correct RPC port)", http_errorstring(response.error), response.error)); else if (response.status == HTTP_UNAUTHORIZED) throw std::runtime_error("incorrect rpcuser or rpcpassword (authorization failed)"); else if (response.status >= 400 && response.status != HTTP_BAD_REQUEST && response.status != HTTP_NOT_FOUND && response.status != HTTP_INTERNAL_SERVER_ERROR) throw std::runtime_error(strprintf("server returned HTTP error %d", response.status)); else if (response.body.empty()) throw std::runtime_error("no response from server"); // Parse reply UniValue valReply(UniValue::VSTR); if (!valReply.read(response.body)) throw std::runtime_error("couldn't parse reply from server"); const UniValue& reply = valReply.get_obj(); if (reply.empty()) throw std::runtime_error("expected reply to have result, error and id properties"); return reply; }