Files
monero/src/rpc/daemon_deprecated_rpc.cpp
moneromooo-monero 6d4ec05f9d monero-rpc-deprecated: misc fixes/improvements
- make error constants actually const
- fix client leak when reconnecting after failure to connect
- simplify strncpy bound
- fix user controlled memory writes in getheight
2015-09-13 11:28:32 +01:00

1023 lines
38 KiB
C++

// Copyright (c) 2014, The Monero Project
//
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without modification, are
// permitted provided that the following conditions are met:
//
// 1. Redistributions of source code must retain the above copyright notice, this list of
// conditions and the following disclaimer.
//
// 2. Redistributions in binary form must reproduce the above copyright notice, this list
// of conditions and the following disclaimer in the documentation and/or other
// materials provided with the distribution.
//
// 3. Neither the name of the copyright holder nor the names of its contributors may be
// used to endorse or promote products derived from this software without specific
// prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
// THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
// STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
// THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// Parts of this file are originally copyright (c) 2012-2013 The Cryptonote developers
/*!
* \file daemon_deprecated_rpc.cpp
* \brief Implementations of old JSON RPC handlers (Daemon)
*/
// NOTE:
// While this uses net_skeleton (aka fossa) for JSON RPC handling, JSON parsing
// and string conversion are done with rapidjson because it is way easier and better
// suited.
// To add a new method, add the name and function pointer to `method_names` and `handlers`.
// The handler function should have the same signature as the rest of them here.
// It should use rapidjson to parse the request string and the internal objects kept in the
// anonymous namespace to generate the response. The response must eventually get
// stringified using rapidjson.
// Trivial and error responses may be returned with ns_create_rpc_reply and ns_create_rpc_error
// respectively.
// TODO: Add core busy checks to all methods here
#include "daemon_deprecated_rpc.h"
#include <stdexcept>
#define MAX_RESPONSE_SIZE 100000
/*!
* \namespace
* \brief Anonymous namespace to keep things in the scope of this file.
*/
namespace
{
// TODO: put right error codes here
const int daemon_connection_error = -326701;
const int parse_error = -32700;
const int invalid_request = -32600;
const int invalid_params = -32602;
const int internal_error = -32603;
const int not_mining_error = -32604;
RPC::Json_rpc_http_server *server = NULL;
wap_client_t *ipc_client = NULL;
const char* STATUS_OK = "OK";
/*!
* \brief Checks if daemon can be reached via IPC
* \return true if daemon can be reached
*/
bool check_connection_to_daemon()
{
return ipc_client && wap_client_connected(ipc_client);
}
/*!
* \brief Checks if daemon can be reached and if not tries to connect to it.
* \return true if daemon is reachable at the end of the function
*/
bool connect_to_daemon() {
if (check_connection_to_daemon()) {
return true;
}
ipc_client = wap_client_new();
wap_client_connect(ipc_client, "ipc://@/monero", 200, "wallet identity");
if (!check_connection_to_daemon()) {
wap_client_destroy(&ipc_client); // this sets ipc_client to NULL
return false;
}
return true;
}
/*!
* \brief Initializes a rapidjson response object
* \param req net_skeleton request object
* \param response_json net_skeleton request object to fill
*/
void init_response_object(struct ns_rpc_request *req, rapidjson::Document &response_json) {
response_json.SetObject();
response_json.AddMember("jsonrpc", "2.0" , response_json.GetAllocator());
rapidjson::Value string_value(rapidjson::kStringType);
// If ID was present in request use it else use "null".
if (req->id != NULL)
{
string_value.SetString(req->id[0].ptr, req->id[0].len);
}
else
{
string_value.SetString("null", 4);
}
response_json.AddMember("id", string_value, response_json.GetAllocator());
string_value.SetString(req->method[0].ptr, req->method[0].len);
response_json.AddMember("method", string_value, response_json.GetAllocator());
}
/*!
* \brief Constructs a response string given a result JSON object.
*
* It also adds boilerplate properties like id, method.
* \param req net_skeleton request object
* \param result_json rapidjson result object
* \param response_json "Root" rapidjson document that will eventually have the whole response
* \param response Response as a string gets written here.
*/
void construct_response_string(struct ns_rpc_request *req, rapidjson::Value &result_json,
rapidjson::Document &response_json, std::string &response)
{
init_response_object(req, response_json);
response_json.AddMember("result", result_json, response_json.GetAllocator());
rapidjson::StringBuffer buffer;
rapidjson::Writer<rapidjson::StringBuffer> writer(buffer);
response_json.Accept(writer);
// Write string to `response`.
response = buffer.GetString();
}
/*!
* \brief Constructs a response string given a result string.
*
* It also adds boilerplate properties like id, method.
* \param req net_skeleton request object
* \param result rapidjson result object
* \param response_json "Root" rapidjson document that will eventually have the whole response
* \param response Response as a string gets written here.
*/
void construct_response_string(struct ns_rpc_request *req, const std::string &result,
rapidjson::Document &response_json, std::string &response)
{
init_response_object(req, response_json);
rapidjson::Value string_value(rapidjson::kStringType);
string_value.SetString(result.c_str(), result.length());
response_json.AddMember("result", string_value, response_json.GetAllocator());
rapidjson::StringBuffer buffer;
rapidjson::Writer<rapidjson::StringBuffer> writer(buffer);
response_json.Accept(writer);
// Write string to `response`.
response = buffer.GetString();
}
/*!
* \brief Implementation of 'getheight' method.
* \param buf Buffer to fill in response.
* \param len Max length of response.
* \param req net_skeleton RPC request
* \return Actual response length.
*/
int getheight(char *buf, int len, struct ns_rpc_request *req)
{
if (!connect_to_daemon()) {
return ns_rpc_create_error(buf, len, req, daemon_connection_error,
"Couldn't connect to daemon.", "{}");
}
int rc = wap_client_get_height(ipc_client);
if (rc < 0) {
return ns_rpc_create_error(buf, len, req, daemon_connection_error,
"Couldn't connect to daemon.", "{}");
}
uint64_t status = wap_client_status(ipc_client);
if (status == IPC::STATUS_CORE_BUSY) {
return ns_rpc_create_error(buf, len, req, internal_error,
"Core busy.", "{}");
}
uint64_t height = wap_client_height(ipc_client);
rapidjson::Document response_json;
rapidjson::Value result_json;
result_json.SetObject();
result_json.AddMember("height", height, response_json.GetAllocator());
result_json.AddMember("status", "OK", response_json.GetAllocator());
std::string response;
construct_response_string(req, result_json, response_json, response);
strncpy(buf, response.c_str(), (size_t)len);
return response.length();
}
/*!
* \brief Implementation of 'startmining' method.
* \param buf Buffer to fill in response.
* \param len Max length of response.
* \param req net_skeleton RPC request
* \return Actual response length.
*/
int startmining(char *buf, int len, struct ns_rpc_request *req)
{
if (!connect_to_daemon()) {
return ns_rpc_create_error(buf, len, req, daemon_connection_error,
"Couldn't connect to daemon.", "{}");
}
if (req->params == NULL)
{
return ns_rpc_create_error(buf, len, req, invalid_params,
"Parameters missing.", "{}");
}
rapidjson::Document request_json;
char request_buf[1000];
strncpy(request_buf, req->params[0].ptr, req->params[0].len);
size_t zidx = sizeof(request_buf) - 1;
if (req->params[0].len < zidx)
zidx = req->params[0].len;
request_buf[zidx] = '\0';
if (request_json.Parse(request_buf).HasParseError())
{
return ns_rpc_create_error(buf, len, req, parse_error,
"Invalid JSON passed", "{}");
}
if (!request_json.HasMember("miner_address") || !request_json["miner_address"].IsString())
{
return ns_rpc_create_error(buf, len, req, invalid_params,
"Incorrect miner_address", "{}");
}
if (!request_json.HasMember("threads_count") || !request_json["threads_count"].IsUint64())
{
return ns_rpc_create_error(buf, len, req, invalid_params,
"Incorrect threads_count", "{}");
}
std::string miner_address = request_json["miner_address"].GetString();
uint64_t threads_count = request_json["threads_count"].GetUint();
zchunk_t *address_chunk = zchunk_new((void*)miner_address.c_str(), miner_address.length());
int rc = wap_client_start(ipc_client, &address_chunk, threads_count);
zchunk_destroy(&address_chunk);
if (rc < 0) {
return ns_rpc_create_error(buf, len, req, daemon_connection_error,
"Couldn't connect to daemon.", "{}");
}
uint64_t status = wap_client_status(ipc_client);
if (status == IPC::STATUS_CORE_BUSY) {
return ns_rpc_create_error(buf, len, req, internal_error,
"Core busy.", "{}");
}
if (status == IPC::STATUS_WRONG_ADDRESS)
{
return ns_rpc_create_error(buf, len, req, invalid_params,
"Failed, wrong address", "{}");
}
if (status == IPC::STATUS_MINING_NOT_STARTED)
{
return ns_rpc_create_error(buf, len, req, invalid_request,
"Failed, mining not started", "{}");
}
return ns_rpc_create_reply(buf, len, req, "{s:s}", "status", STATUS_OK);
}
/*!
* \brief Implementation of 'stopmining' method.
* \param buf Buffer to fill in response.
* \param len Max length of response.
* \param req net_skeleton RPC request
* \return Actual response length.
*/
int stopmining(char *buf, int len, struct ns_rpc_request *req)
{
if (!connect_to_daemon()) {
return ns_rpc_create_error(buf, len, req, daemon_connection_error,
"Couldn't connect to daemon.", "{}");
}
int rc = wap_client_stop(ipc_client);
if (rc < 0) {
return ns_rpc_create_error(buf, len, req, daemon_connection_error,
"Couldn't connect to daemon.", "{}");
}
uint64_t status = wap_client_status(ipc_client);
if (status == IPC::STATUS_CORE_BUSY) {
return ns_rpc_create_error(buf, len, req, internal_error,
"Core busy.", "{}");
}
if (wap_client_status(ipc_client) != IPC::STATUS_OK)
{
return ns_rpc_create_error(buf, len, req, invalid_request,
"Failed, mining not stopped", "{}");
}
return ns_rpc_create_reply(buf, len, req, "{s:s}", "status", STATUS_OK);
}
/*!
* \brief Implementation of 'getinfo' method.
* \param buf Buffer to fill in response.
* \param len Max length of response.
* \param req net_skeleton RPC request
* \return Actual response length.
*/
int getinfo(char *buf, int len, struct ns_rpc_request *req)
{
if (!connect_to_daemon()) {
return ns_rpc_create_error(buf, len, req, daemon_connection_error,
"Couldn't connect to daemon.", "{}");
}
int rc = wap_client_get_info(ipc_client);
if (rc < 0) {
return ns_rpc_create_error(buf, len, req, daemon_connection_error,
"Couldn't connect to daemon.", "{}");
}
uint64_t status = wap_client_status(ipc_client);
if (status == IPC::STATUS_CORE_BUSY) {
return ns_rpc_create_error(buf, len, req, internal_error,
"Core busy.", "{}");
}
if (status != IPC::STATUS_OK)
{
return ns_rpc_create_error(buf, len, req, invalid_request,
"Failed to get info", "{}");
}
rapidjson::Document response_json;
rapidjson::Value result_json;
result_json.SetObject();
result_json.AddMember("height", wap_client_height(ipc_client), response_json.GetAllocator());
result_json.AddMember("target_height", wap_client_target_height(ipc_client),
response_json.GetAllocator());
result_json.AddMember("difficulty", wap_client_difficulty(ipc_client),
response_json.GetAllocator());
result_json.AddMember("tx_count", wap_client_tx_count(ipc_client),
response_json.GetAllocator());
result_json.AddMember("tx_pool_size", wap_client_tx_pool_size(ipc_client),
response_json.GetAllocator());
result_json.AddMember("alt_blocks_count", wap_client_alt_blocks_count(ipc_client),
response_json.GetAllocator());
result_json.AddMember("outgoing_connections_count", wap_client_outgoing_connections_count(ipc_client),
response_json.GetAllocator());
result_json.AddMember("incoming_connections_count", wap_client_incoming_connections_count(ipc_client),
response_json.GetAllocator());
result_json.AddMember("white_peerlist_size", wap_client_white_peerlist_size(ipc_client),
response_json.GetAllocator());
result_json.AddMember("grey_peerlist_size", wap_client_grey_peerlist_size(ipc_client),
response_json.GetAllocator());
result_json.AddMember("status", "OK", response_json.GetAllocator());
std::string response;
construct_response_string(req, result_json, response_json, response);
size_t copy_length = ((uint32_t)len > response.length()) ? response.length() + 1 : (uint32_t)len;
strncpy(buf, response.c_str(), copy_length);
return response.length();
}
/*!
* \brief Implementation of 'getpeerlist' method.
* \param buf Buffer to fill in response.
* \param len Max length of response.
* \param req net_skeleton RPC request
* \return Actual response length.
*/
int getpeerlist(char *buf, int len, struct ns_rpc_request *req)
{
if (!connect_to_daemon()) {
return ns_rpc_create_error(buf, len, req, daemon_connection_error,
"Couldn't connect to daemon.", "{}");
}
int rc = wap_client_get_peer_list(ipc_client);
if (rc < 0) {
return ns_rpc_create_error(buf, len, req, daemon_connection_error,
"Couldn't connect to daemon.", "{}");
}
rapidjson::Document response_json;
rapidjson::Document::AllocatorType &allocator = response_json.GetAllocator();
rapidjson::Value result_json;
result_json.SetObject();
zframe_t *white_list_frame = wap_client_white_list(ipc_client);
rapidjson::Document white_list_json;
char *data = reinterpret_cast<char*>(zframe_data(white_list_frame));
size_t size = zframe_size(white_list_frame);
if (white_list_json.Parse(data, size).HasParseError()) {
return ns_rpc_create_error(buf, len, req, internal_error,
"Couldn't parse JSON sent by daemon.", "{}");
}
result_json.AddMember("white_list", white_list_json["peers"], allocator);
zframe_t *gray_list_frame = wap_client_gray_list(ipc_client);
rapidjson::Document gray_list_json;
data = reinterpret_cast<char*>(zframe_data(gray_list_frame));
size = zframe_size(gray_list_frame);
if (gray_list_json.Parse(data, size).HasParseError()) {
return ns_rpc_create_error(buf, len, req, internal_error,
"Couldn't parse JSON sent by daemon.", "{}");
}
result_json.AddMember("gray_list", gray_list_json["peers"], allocator);
result_json.AddMember("status", "OK", allocator);
std::string response;
construct_response_string(req, result_json, response_json, response);
size_t copy_length = ((uint32_t)len > response.length()) ? response.length() + 1 : (uint32_t)len;
strncpy(buf, response.c_str(), copy_length);
return response.length();
}
/*!
* \brief Implementation of 'getminingstatus' method.
* \param buf Buffer to fill in response.
* \param len Max length of response.
* \param req net_skeleton RPC request
* \return Actual response length.
*/
int getminingstatus(char *buf, int len, struct ns_rpc_request *req)
{
if (!connect_to_daemon()) {
return ns_rpc_create_error(buf, len, req, daemon_connection_error,
"Couldn't connect to daemon.", "{}");
}
int rc = wap_client_get_mining_status(ipc_client);
if (rc < 0) {
return ns_rpc_create_error(buf, len, req, daemon_connection_error,
"Couldn't connect to daemon.", "{}");
}
uint64_t status = wap_client_status(ipc_client);
if (status == IPC::STATUS_CORE_BUSY) {
return ns_rpc_create_error(buf, len, req, internal_error,
"Core busy.", "{}");
}
rapidjson::Document response_json;
rapidjson::Document::AllocatorType &allocator = response_json.GetAllocator();
rapidjson::Value result_json;
result_json.SetObject();
result_json.AddMember("speed", wap_client_speed(ipc_client), allocator);
result_json.AddMember("active", (wap_client_active(ipc_client) == 1), allocator);
result_json.AddMember("threads_count", wap_client_thread_count(ipc_client), allocator);
zchunk_t *address_chunk = wap_client_address(ipc_client);
rapidjson::Value string_value(rapidjson::kStringType);
string_value.SetString((char*)(zchunk_data(address_chunk)), zchunk_size(address_chunk));
result_json.AddMember("address", string_value, allocator);
result_json.AddMember("status", "OK", allocator);
std::string response;
construct_response_string(req, result_json, response_json, response);
size_t copy_length = ((uint32_t)len > response.length()) ? response.length() + 1 : (uint32_t)len;
strncpy(buf, response.c_str(), copy_length);
return response.length();
}
/*!
* \brief Implementation of 'setloghashrate' method.
* \param buf Buffer to fill in response.
* \param len Max length of response.
* \param req net_skeleton RPC request
* \return Actual response length.
*/
int setloghashrate(char *buf, int len, struct ns_rpc_request *req)
{
if (!connect_to_daemon()) {
return ns_rpc_create_error(buf, len, req, daemon_connection_error,
"Couldn't connect to daemon.", "{}");
}
if (req->params == NULL)
{
return ns_rpc_create_error(buf, len, req, invalid_params,
"Parameters missing.", "{}");
}
rapidjson::Document request_json;
char request_buf[1000];
strncpy(request_buf, req->params[0].ptr, req->params[0].len);
request_buf[req->params[0].len] = '\0';
if (request_json.Parse(request_buf).HasParseError())
{
return ns_rpc_create_error(buf, len, req, parse_error,
"Invalid JSON passed", "{}");
}
if (!request_json.HasMember("visible") || !request_json["visible"].IsBool())
{
return ns_rpc_create_error(buf, len, req, invalid_params,
"Incorrect 'visible' field", "{}");
}
bool visible = request_json["visible"].GetBool();
// 0MQ server expects an integer. 1 is true, 0 is false.
int rc = wap_client_set_log_hash_rate(ipc_client, visible ? 1 : 0);
if (rc < 0) {
return ns_rpc_create_error(buf, len, req, daemon_connection_error,
"Couldn't connect to daemon.", "{}");
}
uint64_t status = wap_client_status(ipc_client);
if (status == IPC::STATUS_CORE_BUSY) {
return ns_rpc_create_error(buf, len, req, internal_error,
"Core busy.", "{}");
}
if (status == IPC::STATUS_NOT_MINING) {
return ns_rpc_create_error(buf, len, req, not_mining_error,
"Not mining", "{}");
}
return ns_rpc_create_reply(buf, len, req, "{s:s}", "status", STATUS_OK);
}
/*!
* \brief Implementation of 'setloglevel' method.
* \param buf Buffer to fill in response.
* \param len Max length of response.
* \param req net_skeleton RPC request
* \return Actual response length.
*/
int setloglevel(char *buf, int len, struct ns_rpc_request *req)
{
if (!connect_to_daemon()) {
return ns_rpc_create_error(buf, len, req, daemon_connection_error,
"Couldn't connect to daemon.", "{}");
}
if (req->params == NULL)
{
return ns_rpc_create_error(buf, len, req, invalid_params,
"Parameters missing.", "{}");
}
rapidjson::Document request_json;
char request_buf[1000];
strncpy(request_buf, req->params[0].ptr, req->params[0].len);
request_buf[req->params[0].len] = '\0';
if (request_json.Parse(request_buf).HasParseError())
{
return ns_rpc_create_error(buf, len, req, parse_error,
"Invalid JSON passed", "{}");
}
if (!request_json.HasMember("level") || !request_json["level"].IsNumber())
{
return ns_rpc_create_error(buf, len, req, invalid_params,
"Incorrect 'level' field", "{}");
}
int level = request_json["level"].GetInt();
int rc = wap_client_set_log_level(ipc_client, level);
if (rc < 0) {
return ns_rpc_create_error(buf, len, req, daemon_connection_error,
"Couldn't connect to daemon.", "{}");
}
uint64_t status = wap_client_status(ipc_client);
if (status == IPC::STATUS_CORE_BUSY) {
return ns_rpc_create_error(buf, len, req, internal_error,
"Core busy.", "{}");
}
if (status == IPC::STATUS_INVALID_LOG_LEVEL) {
return ns_rpc_create_error(buf, len, req, invalid_params,
"Invalid log level", "{}");
}
return ns_rpc_create_reply(buf, len, req, "{s:s}", "status", STATUS_OK);
}
/*!
* \brief Implementation of 'getblockcount' method.
* \param buf Buffer to fill in response.
* \param len Max length of response.
* \param req net_skeleton RPC request
* \return Actual response length.
*/
int getblockcount(char *buf, int len, struct ns_rpc_request *req)
{
if (!connect_to_daemon()) {
return ns_rpc_create_error(buf, len, req, daemon_connection_error,
"Couldn't connect to daemon.", "{}");
}
int rc = wap_client_get_height(ipc_client);
if (rc < 0) {
return ns_rpc_create_error(buf, len, req, daemon_connection_error,
"Couldn't connect to daemon.", "{}");
}
uint64_t status = wap_client_status(ipc_client);
if (status == IPC::STATUS_CORE_BUSY) {
return ns_rpc_create_error(buf, len, req, internal_error,
"Core busy.", "{}");
}
uint64_t count = wap_client_height(ipc_client);
rapidjson::Document response_json;
rapidjson::Value result_json;
result_json.SetObject();
result_json.AddMember("count", count, response_json.GetAllocator());
result_json.AddMember("status", "OK", response_json.GetAllocator());
std::string response;
construct_response_string(req, result_json, response_json, response);
size_t copy_length = ((uint32_t)len > response.length()) ? response.length() + 1 : (uint32_t)len;
strncpy(buf, response.c_str(), copy_length);
return response.length();
}
/*!
* \brief Implementation of 'startsavegraph' method.
* \param buf Buffer to fill in response.
* \param len Max length of response.
* \param req net_skeleton RPC request
* \return Actual response length.
*/
int startsavegraph(char *buf, int len, struct ns_rpc_request *req)
{
if (!connect_to_daemon()) {
return ns_rpc_create_error(buf, len, req, daemon_connection_error,
"Couldn't connect to daemon.", "{}");
}
int rc = wap_client_start_save_graph(ipc_client);
if (rc < 0) {
return ns_rpc_create_error(buf, len, req, daemon_connection_error,
"Couldn't connect to daemon.", "{}");
}
return ns_rpc_create_reply(buf, len, req, "{s:s}", "status", STATUS_OK);
}
/*!
* \brief Implementation of 'stopsavegraph' method.
* \param buf Buffer to fill in response.
* \param len Max length of response.
* \param req net_skeleton RPC request
* \return Actual response length.
*/
int stopsavegraph(char *buf, int len, struct ns_rpc_request *req)
{
if (!connect_to_daemon()) {
return ns_rpc_create_error(buf, len, req, daemon_connection_error,
"Couldn't connect to daemon.", "{}");
}
int rc = wap_client_stop_save_graph(ipc_client);
if (rc < 0) {
return ns_rpc_create_error(buf, len, req, daemon_connection_error,
"Couldn't connect to daemon.", "{}");
}
return ns_rpc_create_reply(buf, len, req, "{s:s}", "status", STATUS_OK);
}
/*!
* \brief Implementation of 'getblockhash' method.
* \param buf Buffer to fill in response.
* \param len Max length of response.
* \param req net_skeleton RPC request
* \return Actual response length.
*/
int getblockhash(char *buf, int len, struct ns_rpc_request *req)
{
if (!connect_to_daemon()) {
return ns_rpc_create_error(buf, len, req, daemon_connection_error,
"Couldn't connect to daemon.", "{}");
}
if (req->params == NULL)
{
return ns_rpc_create_error(buf, len, req, invalid_params,
"Parameters missing.", "{}");
}
rapidjson::Document request_json;
char request_buf[1000];
strncpy(request_buf, req->params[0].ptr, req->params[0].len);
request_buf[req->params[0].len] = '\0';
if (request_json.Parse(request_buf).HasParseError())
{
return ns_rpc_create_error(buf, len, req, parse_error,
"Invalid JSON passed", "{}");
}
if (!request_json.IsArray() || request_json.Size() < 1 || !request_json[(unsigned int)0].IsNumber())
{
return ns_rpc_create_error(buf, len, req, invalid_params,
"Incorrect 'height' field", "{}");
}
int height = request_json[(unsigned int)0].GetUint();
int rc = wap_client_get_block_hash(ipc_client, height);
if (rc < 0) {
return ns_rpc_create_error(buf, len, req, daemon_connection_error,
"Couldn't connect to daemon.", "{}");
}
uint64_t status = wap_client_status(ipc_client);
if (status == IPC::STATUS_CORE_BUSY) {
return ns_rpc_create_error(buf, len, req, internal_error,
"Core busy.", "{}");
}
if (status == IPC::STATUS_HEIGHT_TOO_BIG) {
return ns_rpc_create_error(buf, len, req, invalid_params,
"Height too big.", "{}");
}
zchunk_t *hash_chunk = wap_client_hash(ipc_client);
std::string hash((char*)zchunk_data(hash_chunk), zchunk_size(hash_chunk));
std::string response;
rapidjson::Document response_json;
construct_response_string(req, hash, response_json, response);
size_t copy_length = ((uint32_t)len > response.length()) ? response.length() + 1 : (uint32_t)len;
strncpy(buf, response.c_str(), copy_length);
return response.length();
}
/*!
* \brief Implementation of 'getblocktemplate' method.
* \param buf Buffer to fill in response.
* \param len Max length of response.
* \param req net_skeleton RPC request
* \return Actual response length.
*/
int getblocktemplate(char *buf, int len, struct ns_rpc_request *req)
{
if (!connect_to_daemon()) {
return ns_rpc_create_error(buf, len, req, daemon_connection_error,
"Couldn't connect to daemon.", "{}");
}
if (req->params == NULL)
{
return ns_rpc_create_error(buf, len, req, invalid_params,
"Parameters missing.", "{}");
}
rapidjson::Document request_json;
char request_buf[1000];
strncpy(request_buf, req->params[0].ptr, req->params[0].len);
request_buf[req->params[0].len] = '\0';
if (request_json.Parse(request_buf).HasParseError())
{
return ns_rpc_create_error(buf, len, req, parse_error,
"Invalid JSON passed", "{}");
}
if (!request_json.HasMember("reserve_size") || !request_json["reserve_size"].IsNumber())
{
return ns_rpc_create_error(buf, len, req, invalid_params,
"Incorrect 'reserve_size' field", "{}");
}
if (!request_json.HasMember("wallet_address") || !request_json["wallet_address"].IsString())
{
return ns_rpc_create_error(buf, len, req, invalid_params,
"Incorrect 'wallet_address' field", "{}");
}
uint64_t reserve_size = request_json["reserve_size"].GetUint();
std::string wallet_address = request_json["wallet_address"].GetString();
zchunk_t *address_chunk = zchunk_new((void*)wallet_address.c_str(), wallet_address.length());
int rc = wap_client_get_block_template(ipc_client, reserve_size, &address_chunk);
if (rc < 0) {
return ns_rpc_create_error(buf, len, req, daemon_connection_error,
"Couldn't connect to daemon.", "{}");
}
uint64_t status = wap_client_status(ipc_client);
if (status == IPC::STATUS_CORE_BUSY) {
return ns_rpc_create_error(buf, len, req, internal_error,
"Core busy.", "{}");
}
if (status == IPC::STATUS_RESERVE_SIZE_TOO_BIG) {
return ns_rpc_create_error(buf, len, req, invalid_params,
"Reserve size too big.", "{}");
}
if (status == IPC::STATUS_WRONG_ADDRESS) {
return ns_rpc_create_error(buf, len, req, invalid_params,
"Wrong address.", "{}");
}
rapidjson::Document response_json;
rapidjson::Document::AllocatorType &allocator = response_json.GetAllocator();
rapidjson::Value result_json;
result_json.SetObject();
result_json.AddMember("difficulty", wap_client_difficulty(ipc_client), allocator);
result_json.AddMember("height", wap_client_height(ipc_client), allocator);
result_json.AddMember("reserved_offset", wap_client_reserved_offset(ipc_client), allocator);
zchunk_t *prev_hash_chunk = wap_client_prev_hash(ipc_client);
rapidjson::Value string_value(rapidjson::kStringType);
string_value.SetString((char*)zchunk_data(prev_hash_chunk), zchunk_size(prev_hash_chunk));
result_json.AddMember("prev_hash", string_value, allocator);
zchunk_t *block_template_chunk = wap_client_prev_hash(ipc_client);
string_value.SetString((char*)zchunk_data(block_template_chunk), zchunk_size(block_template_chunk));
result_json.AddMember("blocktemplate_blob", string_value, allocator);
std::string response;
construct_response_string(req, result_json, response_json, response);
size_t copy_length = ((uint32_t)len > response.length()) ? response.length() + 1 : (uint32_t)len;
strncpy(buf, response.c_str(), copy_length);
return response.length();
}
/*!
* \brief Implementation of 'getblocks' method.
* \param buf Buffer to fill in response.
* \param len Max length of response.
* \param req net_skeleton RPC request
* \return Actual response length.
*/
int getblocks(char *buf, int len, struct ns_rpc_request *req)
{
if (!connect_to_daemon()) {
return ns_rpc_create_error(buf, len, req, daemon_connection_error,
"Couldn't connect to daemon.", "{}");
}
if (req->params == NULL)
{
return ns_rpc_create_error(buf, len, req, invalid_params,
"Parameters missing.", "{}");
}
rapidjson::Document request_json;
char request_buf[1000];
strncpy(request_buf, req->params[0].ptr, req->params[0].len);
request_buf[req->params[0].len] = '\0';
if (request_json.Parse(request_buf).HasParseError())
{
return ns_rpc_create_error(buf, len, req, parse_error,
"Invalid JSON passed", "{}");
}
if (!request_json.HasMember("start_height") || !request_json["start_height"].IsNumber())
{
return ns_rpc_create_error(buf, len, req, invalid_params,
"Incorrect 'start_height' field", "{}");
}
if (!request_json.HasMember("block_ids") || !request_json["block_ids"].IsArray())
{
return ns_rpc_create_error(buf, len, req, invalid_params,
"Incorrect 'block_ids' field", "{}");
}
uint64_t start_height = request_json["start_height"].GetUint();
uint64_t block_count = request_json["blocks_ids"].Size();
zlist_t *list = zlist_new();
for (int i = 0; i < block_count; i++) {
if (!request_json["blocks_ids"][i].IsString()) {
zlist_destroy(&list);
return ns_rpc_create_error(buf, len, req, invalid_params,
"Incorrect block_id", "{}");
}
std::string block_id = request_json["blocks_ids"][i].GetString();
char *size_prepended_block_id = new char[block_id.length() + 1];
size_prepended_block_id[0] = crypto::HASH_SIZE;
memcpy(size_prepended_block_id + 1, block_id.c_str(), crypto::HASH_SIZE);
zlist_append(list, size_prepended_block_id);
}
int rc = wap_client_blocks(ipc_client, &list, start_height);
zlist_destroy(&list);
if (rc < 0) {
return ns_rpc_create_error(buf, len, req, daemon_connection_error,
"Couldn't connect to daemon.", "{}");
}
uint64_t status = wap_client_status(ipc_client);
if (status == IPC::STATUS_CORE_BUSY) {
return ns_rpc_create_error(buf, len, req, internal_error,
"Core busy.", "{}");
}
if (status == IPC::STATUS_INTERNAL_ERROR) {
return ns_rpc_create_error(buf, len, req, internal_error,
"Internal error.", "{}");
}
rapidjson::Document response_json;
rapidjson::Document::AllocatorType &allocator = response_json.GetAllocator();
rapidjson::Value result_json;
result_json.SetObject();
rapidjson::Value blocks(rapidjson::kArrayType);
zframe_t *frame = zmsg_first(wap_client_block_data(ipc_client));
if (!frame) {
return ns_rpc_create_error(buf, len, req, internal_error,
"Internal error.", "{}");
}
size_t size = zframe_size(frame);
char *block_data = reinterpret_cast<char*>(zframe_data(frame));
rapidjson::Document json;
if (json.Parse(block_data, size).HasParseError()) {
return ns_rpc_create_error(buf, len, req, internal_error,
"Internal error.", "{}");
}
for (rapidjson::SizeType i = 0; i < json["blocks"].Size(); i++) {
rapidjson::Value block_entry(rapidjson::kObjectType);
std::string block_string(json["blocks"][i]["block"].GetString(), json["blocks"][i]["block"].GetStringLength());
rapidjson::Value block_string_json(rapidjson::kStringType);
block_string_json.SetString(block_string.c_str(), block_string.length());
block_entry.AddMember("block", block_string_json, allocator);
rapidjson::Value txs(rapidjson::kArrayType);
for (rapidjson::SizeType j = 0; j < json["blocks"][i]["txs"].Size(); j++) {
rapidjson::Value txs_json(rapidjson::kStringType);
std::string txs_string(json["blocks"][i]["txs"][j].GetString(), json["blocks"][i]["txs"][j].GetStringLength());
txs_json.SetString(txs_string.c_str(), txs_string.length());
txs.PushBack(txs_json, allocator);
}
block_entry.AddMember("txs", txs, allocator);
blocks.PushBack(block_entry, allocator);
}
result_json.AddMember("start_height", wap_client_start_height(ipc_client), allocator);
result_json.AddMember("current_height", wap_client_curr_height(ipc_client), allocator);
result_json.AddMember("blocks", blocks, allocator);
std::string response;
construct_response_string(req, result_json, response_json, response);
size_t copy_length = ((uint32_t)len > response.length()) ? response.length() + 1 : (uint32_t)len;
strncpy(buf, response.c_str(), copy_length);
return response.length();
}
// Contains a list of method names.
const char *method_names[] = {
"getheight",
"startmining",
"stopmining",
"getinfo",
"getpeerlist",
"getminingstatus",
"setloghashrate",
"setloglevel",
"getblockcount",
"startsavegraph",
"stopsavegraph",
"getblockhash",
"getblocktemplate",
"getblocks",
NULL
};
// Contains a list of function pointers. These must map 1-1 by index with `method_names`.
ns_rpc_handler_t handlers[] = {
getheight,
startmining,
stopmining,
getinfo,
getpeerlist,
getminingstatus,
setloghashrate,
setloglevel,
getblockcount,
startsavegraph,
stopsavegraph,
getblockhash,
getblocktemplate,
getblocks,
NULL
};
/*!
* \brief Event handler that is invoked upon net_skeleton network events.
*
* Any change in behavior of RPC should happen from this point.
* \param nc net_skeleton connection
* \param ev Type of event
* \param ev_data Event data
*/
void ev_handler(struct ns_connection *nc, int ev, void *ev_data)
{
struct http_message *hm = (struct http_message *) ev_data;
char buf[MAX_RESPONSE_SIZE];
switch (ev) {
case NS_HTTP_REQUEST:
ns_rpc_dispatch(hm->body.p, hm->body.len, buf, sizeof(buf),
method_names, handlers);
ns_printf(nc, "HTTP/1.0 200 OK\r\nContent-Length: %d\r\n"
"Content-Type: application/json\r\n\r\n%s",
(int) strlen(buf), buf);
nc->flags |= NSF_FINISHED_SENDING_DATA;
break;
default:
break;
}
}
}
/*!
* \namespace RPC
* \brief RPC related utilities
*/
namespace RPC
{
/*!
* \namespace DaemonDeprecated
* \brief DaemonDeprecated RPC stuff
*/
namespace DaemonDeprecated
{
/*!
* \brief Starts an HTTP server that listens to old style JSON RPC requests
* and creates an IPC client to be able to talk to the daemon
* \return status code
*/
int start() {
server = new RPC::Json_rpc_http_server("127.0.0.1", "9997", "daemon_json_rpc", &ev_handler);
if (!server->start()) {
return FAILURE_HTTP_SERVER;
}
std::cout << "Started Daemon server at 127.0.0.1/daemon_json_rpc:9997\n";
ipc_client = wap_client_new();
wap_client_connect(ipc_client, "ipc://@/monero", 200, "wallet identity");
if (!check_connection_to_daemon()) {
return FAILURE_DAEMON_NOT_RUNNING;
}
return SUCCESS;
}
/*!
* \brief Stops the HTTP server and destroys the IPC client
*/
void stop() {
if (server) {
server->stop();
delete server;
}
if (ipc_client) {
wap_client_destroy(&ipc_client);
}
}
}
}