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core_rpc_server.cpp
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core_rpc_server.cpp
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// Copyright (c) 2014-2020, 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
#include <boost/preprocessor/stringize.hpp>
#include <boost/uuid/nil_generator.hpp>
#include "include_base_utils.h"
#include "string_tools.h"
using namespace epee;
#include "core_rpc_server.h"
#include "common/command_line.h"
#include "common/updates.h"
#include "common/download.h"
#include "common/util.h"
#include "common/perf_timer.h"
#include "int-util.h"
#include "cryptonote_basic/cryptonote_format_utils.h"
#include "cryptonote_basic/account.h"
#include "cryptonote_basic/cryptonote_basic_impl.h"
#include "cryptonote_core/tx_sanity_check.h"
#include "misc_language.h"
#include "net/parse.h"
#include "storages/http_abstract_invoke.h"
#include "crypto/hash.h"
#include "rpc/rpc_args.h"
#include "rpc/rpc_handler.h"
#include "rpc/rpc_payment_costs.h"
#include "rpc/rpc_payment_signature.h"
#include "core_rpc_server_error_codes.h"
#include "p2p/net_node.h"
#include "version.h"
#undef MONERO_DEFAULT_LOG_CATEGORY
#define MONERO_DEFAULT_LOG_CATEGORY "daemon.rpc"
#define MAX_RESTRICTED_FAKE_OUTS_COUNT 40
#define MAX_RESTRICTED_GLOBAL_FAKE_OUTS_COUNT 5000
#define OUTPUT_HISTOGRAM_RECENT_CUTOFF_RESTRICTION (3 * 86400) // 3 days max, the wallet requests 1.8 days
#define DEFAULT_PAYMENT_DIFFICULTY 1000
#define DEFAULT_PAYMENT_CREDITS_PER_HASH 100
#define RESTRICTED_BLOCK_HEADER_RANGE 1000
#define RESTRICTED_TRANSACTIONS_COUNT 100
#define RESTRICTED_SPENT_KEY_IMAGES_COUNT 5000
#define RESTRICTED_BLOCK_COUNT 1000
#define RPC_TRACKER(rpc) \
PERF_TIMER(rpc); \
RPCTracker tracker(#rpc, PERF_TIMER_NAME(rpc))
namespace
{
class RPCTracker
{
public:
struct entry_t
{
uint64_t count;
uint64_t time;
uint64_t credits;
};
RPCTracker(const char *rpc, tools::LoggingPerformanceTimer &timer): rpc(rpc), timer(timer) {
}
~RPCTracker() {
try
{
boost::unique_lock<boost::mutex> lock(mutex);
auto &e = tracker[rpc];
++e.count;
e.time += timer.value();
}
catch (...) { /* ignore */ }
}
void pay(uint64_t amount) {
boost::unique_lock<boost::mutex> lock(mutex);
auto &e = tracker[rpc];
e.credits += amount;
}
const std::string &rpc_name() const { return rpc; }
static void clear() { boost::unique_lock<boost::mutex> lock(mutex); tracker.clear(); }
static std::unordered_map<std::string, entry_t> data() { boost::unique_lock<boost::mutex> lock(mutex); return tracker; }
private:
std::string rpc;
tools::LoggingPerformanceTimer &timer;
static boost::mutex mutex;
static std::unordered_map<std::string, entry_t> tracker;
};
boost::mutex RPCTracker::mutex;
std::unordered_map<std::string, RPCTracker::entry_t> RPCTracker::tracker;
void add_reason(std::string &reasons, const char *reason)
{
if (!reasons.empty())
reasons += ", ";
reasons += reason;
}
uint64_t round_up(uint64_t value, uint64_t quantum)
{
return (value + quantum - 1) / quantum * quantum;
}
void store_128(boost::multiprecision::uint128_t value, uint64_t &slow64, std::string &swide, uint64_t &stop64)
{
slow64 = (value & 0xffffffffffffffff).convert_to<uint64_t>();
swide = cryptonote::hex(value);
stop64 = ((value >> 64) & 0xffffffffffffffff).convert_to<uint64_t>();
}
void store_difficulty(cryptonote::difficulty_type difficulty, uint64_t &sdiff, std::string &swdiff, uint64_t &stop64)
{
store_128(difficulty, sdiff, swdiff, stop64);
}
}
namespace cryptonote
{
//-----------------------------------------------------------------------------------
void core_rpc_server::init_options(boost::program_options::options_description& desc)
{
command_line::add_arg(desc, arg_rpc_bind_port);
command_line::add_arg(desc, arg_rpc_restricted_bind_port);
command_line::add_arg(desc, arg_restricted_rpc);
command_line::add_arg(desc, arg_bootstrap_daemon_address);
command_line::add_arg(desc, arg_bootstrap_daemon_login);
command_line::add_arg(desc, arg_bootstrap_daemon_proxy);
cryptonote::rpc_args::init_options(desc, true);
command_line::add_arg(desc, arg_rpc_payment_address);
command_line::add_arg(desc, arg_rpc_payment_difficulty);
command_line::add_arg(desc, arg_rpc_payment_credits);
command_line::add_arg(desc, arg_rpc_payment_allow_free_loopback);
}
//------------------------------------------------------------------------------------------------------------------------------
core_rpc_server::core_rpc_server(
core& cr
, nodetool::node_server<cryptonote::t_cryptonote_protocol_handler<cryptonote::core> >& p2p
)
: m_core(cr)
, m_p2p(p2p)
, m_was_bootstrap_ever_used(false)
, disable_rpc_ban(false)
, m_rpc_payment_allow_free_loopback(false)
{}
//------------------------------------------------------------------------------------------------------------------------------
bool core_rpc_server::set_bootstrap_daemon(
const std::string &address,
const std::string &username_password,
const std::string &proxy)
{
boost::optional<epee::net_utils::http::login> credentials;
const auto loc = username_password.find(':');
if (loc != std::string::npos)
{
credentials = epee::net_utils::http::login(username_password.substr(0, loc), username_password.substr(loc + 1));
}
return set_bootstrap_daemon(address, credentials, proxy);
}
//------------------------------------------------------------------------------------------------------------------------------
std::map<std::string, bool> core_rpc_server::get_public_nodes(uint32_t credits_per_hash_threshold/* = 0*/)
{
COMMAND_RPC_GET_PUBLIC_NODES::request request;
COMMAND_RPC_GET_PUBLIC_NODES::response response;
request.gray = true;
request.white = true;
request.include_blocked = false;
if (!on_get_public_nodes(request, response) || response.status != CORE_RPC_STATUS_OK)
{
return {};
}
std::map<std::string, bool> result;
const auto append = [&result, &credits_per_hash_threshold](const std::vector<public_node> &nodes, bool white) {
for (const auto &node : nodes)
{
const bool rpc_payment_enabled = credits_per_hash_threshold > 0;
const bool node_rpc_payment_enabled = node.rpc_credits_per_hash > 0;
if (!node_rpc_payment_enabled ||
(rpc_payment_enabled && node.rpc_credits_per_hash >= credits_per_hash_threshold))
{
result.insert(std::make_pair(node.host + ":" + std::to_string(node.rpc_port), white));
}
}
};
append(response.white, true);
append(response.gray, false);
return result;
}
//------------------------------------------------------------------------------------------------------------------------------
bool core_rpc_server::set_bootstrap_daemon(
const std::string &address,
const boost::optional<epee::net_utils::http::login> &credentials,
const std::string &proxy)
{
boost::unique_lock<boost::shared_mutex> lock(m_bootstrap_daemon_mutex);
constexpr const uint32_t credits_per_hash_threshold = 0;
constexpr const bool rpc_payment_enabled = credits_per_hash_threshold != 0;
if (address.empty())
{
m_bootstrap_daemon.reset(nullptr);
}
else if (address == "auto")
{
auto get_nodes = [this]() {
return get_public_nodes(credits_per_hash_threshold);
};
m_bootstrap_daemon.reset(new bootstrap_daemon(std::move(get_nodes), rpc_payment_enabled, m_bootstrap_daemon_proxy.empty() ? proxy : m_bootstrap_daemon_proxy));
}
else
{
m_bootstrap_daemon.reset(new bootstrap_daemon(address, credentials, rpc_payment_enabled, m_bootstrap_daemon_proxy.empty() ? proxy : m_bootstrap_daemon_proxy));
}
m_should_use_bootstrap_daemon = m_bootstrap_daemon.get() != nullptr;
return true;
}
core_rpc_server::~core_rpc_server()
{
if (m_rpc_payment)
m_rpc_payment->store();
}
//------------------------------------------------------------------------------------------------------------------------------
bool core_rpc_server::init(
const boost::program_options::variables_map& vm
, const bool restricted
, const std::string& port
, bool allow_rpc_payment
, const std::string& proxy
)
{
m_bootstrap_daemon_proxy = proxy;
m_restricted = restricted;
m_net_server.set_threads_prefix("RPC");
m_net_server.set_connection_filter(&m_p2p);
auto rpc_config = cryptonote::rpc_args::process(vm, true);
if (!rpc_config)
return false;
std::string bind_ip_str = rpc_config->bind_ip;
std::string bind_ipv6_str = rpc_config->bind_ipv6_address;
if (restricted)
{
const auto restricted_rpc_port_arg = cryptonote::core_rpc_server::arg_rpc_restricted_bind_port;
const bool has_restricted_rpc_port_arg = !command_line::is_arg_defaulted(vm, restricted_rpc_port_arg);
if (has_restricted_rpc_port_arg && port == command_line::get_arg(vm, restricted_rpc_port_arg))
{
bind_ip_str = rpc_config->restricted_bind_ip;
bind_ipv6_str = rpc_config->restricted_bind_ipv6_address;
}
}
disable_rpc_ban = rpc_config->disable_rpc_ban;
std::string address = command_line::get_arg(vm, arg_rpc_payment_address);
if (!address.empty() && allow_rpc_payment)
{
if (!m_restricted && nettype() != FAKECHAIN)
{
MFATAL("RPC payment enabled, but server is not restricted, anyone can adjust their balance to bypass payment");
return false;
}
cryptonote::address_parse_info info;
if (!get_account_address_from_str(info, nettype(), address))
{
MFATAL("Invalid payment address: " << address);
return false;
}
if (info.is_subaddress)
{
MFATAL("Payment address may not be a subaddress: " << address);
return false;
}
uint64_t diff = command_line::get_arg(vm, arg_rpc_payment_difficulty);
uint64_t credits = command_line::get_arg(vm, arg_rpc_payment_credits);
if (diff == 0 || credits == 0)
{
MFATAL("Payments difficulty and/or payments credits are 0, but a payment address was given");
return false;
}
m_rpc_payment_allow_free_loopback = command_line::get_arg(vm, arg_rpc_payment_allow_free_loopback);
m_rpc_payment.reset(new rpc_payment(info.address, diff, credits));
m_rpc_payment->load(command_line::get_arg(vm, cryptonote::arg_data_dir));
m_p2p.set_rpc_credits_per_hash(RPC_CREDITS_PER_HASH_SCALE * (credits / (float)diff));
}
if (!m_rpc_payment)
{
uint32_t bind_ip;
bool ok = epee::string_tools::get_ip_int32_from_string(bind_ip, bind_ip_str);
if (ok & !epee::net_utils::is_ip_loopback(bind_ip))
MWARNING("The RPC server is accessible from the outside, but no RPC payment was setup. RPC access will be free for all.");
}
if (!set_bootstrap_daemon(
command_line::get_arg(vm, arg_bootstrap_daemon_address),
command_line::get_arg(vm, arg_bootstrap_daemon_login),
command_line::get_arg(vm, arg_bootstrap_daemon_proxy)))
{
MFATAL("Failed to parse bootstrap daemon address");
return false;
}
boost::optional<epee::net_utils::http::login> http_login{};
if (rpc_config->login)
http_login.emplace(std::move(rpc_config->login->username), std::move(rpc_config->login->password).password());
if (m_rpc_payment)
m_net_server.add_idle_handler([this](){ return m_rpc_payment->on_idle(); }, 60 * 1000);
m_net_server.get_config_object().m_max_content_length = MAX_RPC_CONTENT_LENGTH;
auto rng = [](size_t len, uint8_t *ptr){ return crypto::rand(len, ptr); };
return epee::http_server_impl_base<core_rpc_server, connection_context>::init(
rng, std::move(port), std::move(bind_ip_str),
std::move(bind_ipv6_str), std::move(rpc_config->use_ipv6), std::move(rpc_config->require_ipv4),
std::move(rpc_config->access_control_origins), std::move(http_login), std::move(rpc_config->ssl_options)
);
}
//------------------------------------------------------------------------------------------------------------------------------
bool core_rpc_server::check_payment(const std::string &client_message, uint64_t payment, const std::string &rpc, bool same_ts, std::string &message, uint64_t &credits, std::string &top_hash)
{
if (m_rpc_payment == NULL)
{
credits = 0;
return true;
}
uint64_t height;
crypto::hash hash;
m_core.get_blockchain_top(height, hash);
top_hash = epee::string_tools::pod_to_hex(hash);
crypto::public_key client;
uint64_t ts;
#ifndef NDEBUG
if (nettype() == TESTNET && client_message == "debug")
{
credits = 0;
return true;
}
#endif
if (!cryptonote::verify_rpc_payment_signature(client_message, client, ts))
{
credits = 0;
message = "Client signature does not verify for " + rpc;
return false;
}
crypto::public_key local_client;
if (!m_rpc_payment->pay(client, ts, payment, rpc, same_ts, credits))
{
message = CORE_RPC_STATUS_PAYMENT_REQUIRED;
return false;
}
return true;
}
#define CHECK_PAYMENT_BASE(req, res, payment, same_ts) do { if (!ctx) break; uint64_t P = (uint64_t)payment; if (P > 0 && !check_payment(req.client, P, tracker.rpc_name(), same_ts, res.status, res.credits, res.top_hash)){return true;} tracker.pay(P); } while(0)
#define CHECK_PAYMENT(req, res, payment) CHECK_PAYMENT_BASE(req, res, payment, false)
#define CHECK_PAYMENT_SAME_TS(req, res, payment) CHECK_PAYMENT_BASE(req, res, payment, true)
#define CHECK_PAYMENT_MIN1(req, res, payment, same_ts) do { if (!ctx || (m_rpc_payment_allow_free_loopback && ctx->m_remote_address.is_loopback())) break; uint64_t P = (uint64_t)payment; if (P == 0) P = 1; if(!check_payment(req.client, P, tracker.rpc_name(), same_ts, res.status, res.credits, res.top_hash)){return true;} tracker.pay(P); } while(0)
//------------------------------------------------------------------------------------------------------------------------------
bool core_rpc_server::check_core_ready()
{
if(!m_p2p.get_payload_object().is_synchronized())
{
return false;
}
return true;
}
//------------------------------------------------------------------------------------------------------------------------------
bool core_rpc_server::add_host_fail(const connection_context *ctx, unsigned int score)
{
if(!ctx || !ctx->m_remote_address.is_blockable() || disable_rpc_ban)
return false;
CRITICAL_REGION_LOCAL(m_host_fails_score_lock);
uint64_t fails = m_host_fails_score[ctx->m_remote_address.host_str()] += score;
MDEBUG("Host " << ctx->m_remote_address.host_str() << " fail score=" << fails);
if(fails > RPC_IP_FAILS_BEFORE_BLOCK)
{
auto it = m_host_fails_score.find(ctx->m_remote_address.host_str());
CHECK_AND_ASSERT_MES(it != m_host_fails_score.end(), false, "internal error");
it->second = RPC_IP_FAILS_BEFORE_BLOCK/2;
m_p2p.block_host(ctx->m_remote_address);
}
return true;
}
#define CHECK_CORE_READY() do { if(!check_core_ready()){res.status = CORE_RPC_STATUS_BUSY;return true;} } while(0)
//------------------------------------------------------------------------------------------------------------------------------
bool core_rpc_server::on_get_height(const COMMAND_RPC_GET_HEIGHT::request& req, COMMAND_RPC_GET_HEIGHT::response& res, const connection_context *ctx)
{
RPC_TRACKER(get_height);
bool r;
if (use_bootstrap_daemon_if_necessary<COMMAND_RPC_GET_HEIGHT>(invoke_http_mode::JON, "/getheight", req, res, r))
return r;
crypto::hash hash;
m_core.get_blockchain_top(res.height, hash);
++res.height; // block height to chain height
res.hash = string_tools::pod_to_hex(hash);
res.status = CORE_RPC_STATUS_OK;
return true;
}
//------------------------------------------------------------------------------------------------------------------------------
bool core_rpc_server::on_get_info(const COMMAND_RPC_GET_INFO::request& req, COMMAND_RPC_GET_INFO::response& res, const connection_context *ctx)
{
RPC_TRACKER(get_info);
bool r;
if (use_bootstrap_daemon_if_necessary<COMMAND_RPC_GET_INFO>(invoke_http_mode::JON, "/getinfo", req, res, r))
{
{
boost::shared_lock<boost::shared_mutex> lock(m_bootstrap_daemon_mutex);
if (m_bootstrap_daemon.get() != nullptr)
{
res.bootstrap_daemon_address = m_bootstrap_daemon->address();
}
}
crypto::hash top_hash;
m_core.get_blockchain_top(res.height_without_bootstrap, top_hash);
++res.height_without_bootstrap; // turn top block height into blockchain height
res.was_bootstrap_ever_used = true;
return r;
}
CHECK_PAYMENT_MIN1(req, res, COST_PER_GET_INFO, false);
const bool restricted = m_restricted && ctx;
crypto::hash top_hash;
m_core.get_blockchain_top(res.height, top_hash);
++res.height; // turn top block height into blockchain height
res.top_block_hash = string_tools::pod_to_hex(top_hash);
res.target_height = m_core.get_target_blockchain_height();
store_difficulty(m_core.get_blockchain_storage().get_difficulty_for_next_block(), res.difficulty, res.wide_difficulty, res.difficulty_top64);
res.target = m_core.get_blockchain_storage().get_difficulty_target();
res.tx_count = m_core.get_blockchain_storage().get_total_transactions() - res.height; //without coinbase
res.tx_pool_size = m_core.get_pool_transactions_count(!restricted);
res.alt_blocks_count = restricted ? 0 : m_core.get_blockchain_storage().get_alternative_blocks_count();
uint64_t total_conn = restricted ? 0 : m_p2p.get_public_connections_count();
res.outgoing_connections_count = restricted ? 0 : m_p2p.get_public_outgoing_connections_count();
res.incoming_connections_count = restricted ? 0 : (total_conn - res.outgoing_connections_count);
res.rpc_connections_count = restricted ? 0 : get_connections_count();
res.white_peerlist_size = restricted ? 0 : m_p2p.get_public_white_peers_count();
res.grey_peerlist_size = restricted ? 0 : m_p2p.get_public_gray_peers_count();
cryptonote::network_type net_type = nettype();
res.mainnet = net_type == MAINNET;
res.testnet = net_type == TESTNET;
res.stagenet = net_type == STAGENET;
res.nettype = net_type == MAINNET ? "mainnet" : net_type == TESTNET ? "testnet" : net_type == STAGENET ? "stagenet" : "fakechain";
store_difficulty(m_core.get_blockchain_storage().get_db().get_block_cumulative_difficulty(res.height - 1),
res.cumulative_difficulty, res.wide_cumulative_difficulty, res.cumulative_difficulty_top64);
res.block_size_limit = res.block_weight_limit = m_core.get_blockchain_storage().get_current_cumulative_block_weight_limit();
res.block_size_median = res.block_weight_median = m_core.get_blockchain_storage().get_current_cumulative_block_weight_median();
res.adjusted_time = m_core.get_blockchain_storage().get_adjusted_time(res.height);
res.start_time = restricted ? 0 : (uint64_t)m_core.get_start_time();
res.free_space = restricted ? std::numeric_limits<uint64_t>::max() : m_core.get_free_space();
res.offline = m_core.offline();
res.height_without_bootstrap = restricted ? 0 : res.height;
if (restricted)
{
res.bootstrap_daemon_address = "";
res.was_bootstrap_ever_used = false;
}
else
{
boost::shared_lock<boost::shared_mutex> lock(m_bootstrap_daemon_mutex);
if (m_bootstrap_daemon.get() != nullptr)
{
res.bootstrap_daemon_address = m_bootstrap_daemon->address();
}
res.was_bootstrap_ever_used = m_was_bootstrap_ever_used;
}
res.database_size = m_core.get_blockchain_storage().get_db().get_database_size();
if (restricted)
res.database_size = round_up(res.database_size, 5ull* 1024 * 1024 * 1024);
res.update_available = restricted ? false : m_core.is_update_available();
res.version = restricted ? "" : MONERO_VERSION_FULL;
res.busy_syncing = m_p2p.get_payload_object().is_busy_syncing();
res.synchronized = check_core_ready();
res.status = CORE_RPC_STATUS_OK;
return true;
}
//------------------------------------------------------------------------------------------------------------------------------
bool core_rpc_server::on_get_net_stats(const COMMAND_RPC_GET_NET_STATS::request& req, COMMAND_RPC_GET_NET_STATS::response& res, const connection_context *ctx)
{
RPC_TRACKER(get_net_stats);
// No bootstrap daemon check: Only ever get stats about local server
res.start_time = (uint64_t)m_core.get_start_time();
{
CRITICAL_REGION_LOCAL(epee::net_utils::network_throttle_manager::m_lock_get_global_throttle_in);
epee::net_utils::network_throttle_manager::get_global_throttle_in().get_stats(res.total_packets_in, res.total_bytes_in);
}
{
CRITICAL_REGION_LOCAL(epee::net_utils::network_throttle_manager::m_lock_get_global_throttle_out);
epee::net_utils::network_throttle_manager::get_global_throttle_out().get_stats(res.total_packets_out, res.total_bytes_out);
}
res.status = CORE_RPC_STATUS_OK;
return true;
}
//------------------------------------------------------------------------------------------------------------------------------
class pruned_transaction {
transaction& tx;
public:
pruned_transaction(transaction& tx) : tx(tx) {}
BEGIN_SERIALIZE_OBJECT()
bool r = tx.serialize_base(ar);
if (!r) return false;
END_SERIALIZE()
};
//------------------------------------------------------------------------------------------------------------------------------
bool core_rpc_server::on_get_blocks(const COMMAND_RPC_GET_BLOCKS_FAST::request& req, COMMAND_RPC_GET_BLOCKS_FAST::response& res, const connection_context *ctx)
{
RPC_TRACKER(get_blocks);
bool use_bootstrap_daemon;
{
boost::shared_lock<boost::shared_mutex> lock(m_bootstrap_daemon_mutex);
use_bootstrap_daemon = m_should_use_bootstrap_daemon;
}
if (use_bootstrap_daemon)
{
bool r;
return use_bootstrap_daemon_if_necessary<COMMAND_RPC_GET_BLOCKS_FAST>(invoke_http_mode::BIN, "/getblocks.bin", req, res, r);
}
CHECK_PAYMENT(req, res, 1);
// quick check for noop
if (!req.block_ids.empty())
{
uint64_t last_block_height;
crypto::hash last_block_hash;
m_core.get_blockchain_top(last_block_height, last_block_hash);
if (last_block_hash == req.block_ids.front())
{
res.start_height = 0;
res.current_height = m_core.get_current_blockchain_height();
res.status = CORE_RPC_STATUS_OK;
return true;
}
}
size_t max_blocks = COMMAND_RPC_GET_BLOCKS_FAST_MAX_BLOCK_COUNT;
if (m_rpc_payment)
{
max_blocks = res.credits / COST_PER_BLOCK;
if (max_blocks > COMMAND_RPC_GET_BLOCKS_FAST_MAX_BLOCK_COUNT)
max_blocks = COMMAND_RPC_GET_BLOCKS_FAST_MAX_BLOCK_COUNT;
if (max_blocks == 0)
{
res.status = CORE_RPC_STATUS_PAYMENT_REQUIRED;
return false;
}
}
std::vector<std::pair<std::pair<cryptonote::blobdata, crypto::hash>, std::vector<std::pair<crypto::hash, cryptonote::blobdata> > > > bs;
if(!m_core.find_blockchain_supplement(req.start_height, req.block_ids, bs, res.current_height, res.start_height, req.prune, !req.no_miner_tx, max_blocks, COMMAND_RPC_GET_BLOCKS_FAST_MAX_TX_COUNT))
{
res.status = "Failed";
add_host_fail(ctx);
return false;
}
CHECK_PAYMENT_SAME_TS(req, res, bs.size() * COST_PER_BLOCK);
size_t size = 0, ntxes = 0;
res.blocks.reserve(bs.size());
res.output_indices.reserve(bs.size());
for(auto& bd: bs)
{
res.blocks.resize(res.blocks.size()+1);
res.blocks.back().pruned = req.prune;
res.blocks.back().block = bd.first.first;
size += bd.first.first.size();
res.output_indices.push_back(COMMAND_RPC_GET_BLOCKS_FAST::block_output_indices());
ntxes += bd.second.size();
res.output_indices.back().indices.reserve(1 + bd.second.size());
if (req.no_miner_tx)
res.output_indices.back().indices.push_back(COMMAND_RPC_GET_BLOCKS_FAST::tx_output_indices());
res.blocks.back().txs.reserve(bd.second.size());
for (std::vector<std::pair<crypto::hash, cryptonote::blobdata>>::iterator i = bd.second.begin(); i != bd.second.end(); ++i)
{
res.blocks.back().txs.push_back({std::move(i->second), crypto::null_hash});
i->second.clear();
i->second.shrink_to_fit();
size += res.blocks.back().txs.back().blob.size();
}
const size_t n_txes_to_lookup = bd.second.size() + (req.no_miner_tx ? 0 : 1);
if (n_txes_to_lookup > 0)
{
std::vector<std::vector<uint64_t>> indices;
bool r = m_core.get_tx_outputs_gindexs(req.no_miner_tx ? bd.second.front().first : bd.first.second, n_txes_to_lookup, indices);
if (!r)
{
res.status = "Failed";
return false;
}
if (indices.size() != n_txes_to_lookup || res.output_indices.back().indices.size() != (req.no_miner_tx ? 1 : 0))
{
res.status = "Failed";
return false;
}
for (size_t i = 0; i < indices.size(); ++i)
res.output_indices.back().indices.push_back({std::move(indices[i])});
}
}
MDEBUG("on_get_blocks: " << bs.size() << " blocks, " << ntxes << " txes, size " << size);
res.status = CORE_RPC_STATUS_OK;
return true;
}
bool core_rpc_server::on_get_alt_blocks_hashes(const COMMAND_RPC_GET_ALT_BLOCKS_HASHES::request& req, COMMAND_RPC_GET_ALT_BLOCKS_HASHES::response& res, const connection_context *ctx)
{
RPC_TRACKER(get_alt_blocks_hashes);
bool r;
if (use_bootstrap_daemon_if_necessary<COMMAND_RPC_GET_ALT_BLOCKS_HASHES>(invoke_http_mode::JON, "/get_alt_blocks_hashes", req, res, r))
return r;
std::vector<block> blks;
if(!m_core.get_alternative_blocks(blks))
{
res.status = "Failed";
return false;
}
res.blks_hashes.reserve(blks.size());
for (auto const& blk: blks)
{
res.blks_hashes.push_back(epee::string_tools::pod_to_hex(get_block_hash(blk)));
}
MDEBUG("on_get_alt_blocks_hashes: " << blks.size() << " blocks " );
res.status = CORE_RPC_STATUS_OK;
return true;
}
//------------------------------------------------------------------------------------------------------------------------------
bool core_rpc_server::on_get_blocks_by_height(const COMMAND_RPC_GET_BLOCKS_BY_HEIGHT::request& req, COMMAND_RPC_GET_BLOCKS_BY_HEIGHT::response& res, const connection_context *ctx)
{
RPC_TRACKER(get_blocks_by_height);
bool r;
if (use_bootstrap_daemon_if_necessary<COMMAND_RPC_GET_BLOCKS_BY_HEIGHT>(invoke_http_mode::BIN, "/getblocks_by_height.bin", req, res, r))
return r;
const bool restricted = m_restricted && ctx;
if (restricted && req.heights.size() > RESTRICTED_BLOCK_COUNT)
{
res.status = "Too many blocks requested in restricted mode";
return true;
}
res.status = "Failed";
res.blocks.clear();
res.blocks.reserve(req.heights.size());
CHECK_PAYMENT_MIN1(req, res, req.heights.size() * COST_PER_BLOCK, false);
for (uint64_t height : req.heights)
{
block blk;
try
{
blk = m_core.get_blockchain_storage().get_db().get_block_from_height(height);
}
catch (...)
{
res.status = "Error retrieving block at height " + std::to_string(height);
return true;
}
std::vector<transaction> txs;
std::vector<crypto::hash> missed_txs;
m_core.get_transactions(blk.tx_hashes, txs, missed_txs);
res.blocks.resize(res.blocks.size() + 1);
res.blocks.back().block = block_to_blob(blk);
for (auto& tx : txs)
res.blocks.back().txs.push_back({tx_to_blob(tx), crypto::null_hash});
}
res.status = CORE_RPC_STATUS_OK;
return true;
}
//------------------------------------------------------------------------------------------------------------------------------
bool core_rpc_server::on_get_hashes(const COMMAND_RPC_GET_HASHES_FAST::request& req, COMMAND_RPC_GET_HASHES_FAST::response& res, const connection_context *ctx)
{
RPC_TRACKER(get_hashes);
bool r;
if (use_bootstrap_daemon_if_necessary<COMMAND_RPC_GET_HASHES_FAST>(invoke_http_mode::BIN, "/gethashes.bin", req, res, r))
return r;
CHECK_PAYMENT(req, res, 1);
res.start_height = req.start_height;
if(!m_core.get_blockchain_storage().find_blockchain_supplement(req.block_ids, res.m_block_ids, NULL, res.start_height, res.current_height, false))
{
res.status = "Failed";
add_host_fail(ctx);
return false;
}
CHECK_PAYMENT_SAME_TS(req, res, res.m_block_ids.size() * COST_PER_BLOCK_HASH);
res.status = CORE_RPC_STATUS_OK;
return true;
}
//------------------------------------------------------------------------------------------------------------------------------
bool core_rpc_server::on_get_outs_bin(const COMMAND_RPC_GET_OUTPUTS_BIN::request& req, COMMAND_RPC_GET_OUTPUTS_BIN::response& res, const connection_context *ctx)
{
RPC_TRACKER(get_outs_bin);
bool r;
if (use_bootstrap_daemon_if_necessary<COMMAND_RPC_GET_OUTPUTS_BIN>(invoke_http_mode::BIN, "/get_outs.bin", req, res, r))
return r;
CHECK_PAYMENT_MIN1(req, res, req.outputs.size() * COST_PER_OUT, false);
res.status = "Failed";
const bool restricted = m_restricted && ctx;
if (restricted)
{
if (req.outputs.size() > MAX_RESTRICTED_GLOBAL_FAKE_OUTS_COUNT)
{
res.status = "Too many outs requested";
return true;
}
}
if(!m_core.get_outs(req, res))
{
return true;
}
res.status = CORE_RPC_STATUS_OK;
return true;
}
//------------------------------------------------------------------------------------------------------------------------------
bool core_rpc_server::on_get_outs(const COMMAND_RPC_GET_OUTPUTS::request& req, COMMAND_RPC_GET_OUTPUTS::response& res, const connection_context *ctx)
{
RPC_TRACKER(get_outs);
bool r;
if (use_bootstrap_daemon_if_necessary<COMMAND_RPC_GET_OUTPUTS>(invoke_http_mode::JON, "/get_outs", req, res, r))
return r;
CHECK_PAYMENT_MIN1(req, res, req.outputs.size() * COST_PER_OUT, false);
res.status = "Failed";
const bool restricted = m_restricted && ctx;
if (restricted)
{
if (req.outputs.size() > MAX_RESTRICTED_GLOBAL_FAKE_OUTS_COUNT)
{
res.status = "Too many outs requested";
return true;
}
}
cryptonote::COMMAND_RPC_GET_OUTPUTS_BIN::request req_bin;
req_bin.outputs = req.outputs;
req_bin.get_txid = req.get_txid;
cryptonote::COMMAND_RPC_GET_OUTPUTS_BIN::response res_bin;
if(!m_core.get_outs(req_bin, res_bin))
{
return true;
}
// convert to text
for (const auto &i: res_bin.outs)
{
res.outs.push_back(cryptonote::COMMAND_RPC_GET_OUTPUTS::outkey());
cryptonote::COMMAND_RPC_GET_OUTPUTS::outkey &outkey = res.outs.back();
outkey.key = epee::string_tools::pod_to_hex(i.key);
outkey.mask = epee::string_tools::pod_to_hex(i.mask);
outkey.unlocked = i.unlocked;
outkey.height = i.height;
if (req.get_txid)
outkey.txid = epee::string_tools::pod_to_hex(i.txid);
}
res.status = CORE_RPC_STATUS_OK;
return true;
}
//------------------------------------------------------------------------------------------------------------------------------
bool core_rpc_server::on_get_indexes(const COMMAND_RPC_GET_TX_GLOBAL_OUTPUTS_INDEXES::request& req, COMMAND_RPC_GET_TX_GLOBAL_OUTPUTS_INDEXES::response& res, const connection_context *ctx)
{
RPC_TRACKER(get_indexes);
bool ok;
if (use_bootstrap_daemon_if_necessary<COMMAND_RPC_GET_TX_GLOBAL_OUTPUTS_INDEXES>(invoke_http_mode::BIN, "/get_o_indexes.bin", req, res, ok))
return ok;
CHECK_PAYMENT_MIN1(req, res, COST_PER_OUTPUT_INDEXES, false);
bool r = m_core.get_tx_outputs_gindexs(req.txid, res.o_indexes);
if(!r)
{
res.status = "Failed";
return true;
}
res.status = CORE_RPC_STATUS_OK;
LOG_PRINT_L2("COMMAND_RPC_GET_TX_GLOBAL_OUTPUTS_INDEXES: [" << res.o_indexes.size() << "]");
return true;
}
//------------------------------------------------------------------------------------------------------------------------------
bool core_rpc_server::on_get_transactions(const COMMAND_RPC_GET_TRANSACTIONS::request& req, COMMAND_RPC_GET_TRANSACTIONS::response& res, const connection_context *ctx)
{
RPC_TRACKER(get_transactions);
bool ok;
if (use_bootstrap_daemon_if_necessary<COMMAND_RPC_GET_TRANSACTIONS>(invoke_http_mode::JON, "/gettransactions", req, res, ok))
return ok;
const bool restricted = m_restricted && ctx;
const bool request_has_rpc_origin = ctx != NULL;
if (restricted && req.txs_hashes.size() > RESTRICTED_TRANSACTIONS_COUNT)
{
res.status = "Too many transactions requested in restricted mode";
return true;
}
CHECK_PAYMENT_MIN1(req, res, req.txs_hashes.size() * COST_PER_TX, false);
std::vector<crypto::hash> vh;
for(const auto& tx_hex_str: req.txs_hashes)
{
blobdata b;
if(!string_tools::parse_hexstr_to_binbuff(tx_hex_str, b))
{
res.status = "Failed to parse hex representation of transaction hash";
return true;
}
if(b.size() != sizeof(crypto::hash))
{
res.status = "Failed, size of data mismatch";
return true;
}
vh.push_back(*reinterpret_cast<const crypto::hash*>(b.data()));
}
std::vector<crypto::hash> missed_txs;
std::vector<std::tuple<crypto::hash, cryptonote::blobdata, crypto::hash, cryptonote::blobdata>> txs;
bool r = m_core.get_split_transactions_blobs(vh, txs, missed_txs);
if(!r)
{
res.status = "Failed";
return true;
}
LOG_PRINT_L2("Found " << txs.size() << "/" << vh.size() << " transactions on the blockchain");
// try the pool for any missing txes
size_t found_in_pool = 0;
std::unordered_set<crypto::hash> pool_tx_hashes;
std::unordered_map<crypto::hash, tx_info> per_tx_pool_tx_info;
if (!missed_txs.empty())
{
std::vector<tx_info> pool_tx_info;
std::vector<spent_key_image_info> pool_key_image_info;
bool r = m_core.get_pool_transactions_and_spent_keys_info(pool_tx_info, pool_key_image_info, !request_has_rpc_origin || !restricted);
if(r)
{
// sort to match original request
std::vector<std::tuple<crypto::hash, cryptonote::blobdata, crypto::hash, cryptonote::blobdata>> sorted_txs;
std::vector<tx_info>::const_iterator i;
unsigned txs_processed = 0;
for (const crypto::hash &h: vh)
{
if (std::find(missed_txs.begin(), missed_txs.end(), h) == missed_txs.end())
{
if (txs.size() == txs_processed)
{
res.status = "Failed: internal error - txs is empty";
return true;
}
// core returns the ones it finds in the right order
if (std::get<0>(txs[txs_processed]) != h)
{
res.status = "Failed: tx hash mismatch";
return true;
}
sorted_txs.push_back(std::move(txs[txs_processed]));
++txs_processed;
}
else if ((i = std::find_if(pool_tx_info.begin(), pool_tx_info.end(), [h](const tx_info &txi) { return epee::string_tools::pod_to_hex(h) == txi.id_hash; })) != pool_tx_info.end())
{
cryptonote::transaction tx;
if (!cryptonote::parse_and_validate_tx_from_blob(i->tx_blob, tx))
{
res.status = "Failed to parse and validate tx from blob";
return true;
}
std::stringstream ss;
binary_archive<true> ba(ss);
bool r = const_cast<cryptonote::transaction&>(tx).serialize_base(ba);
if (!r)
{
res.status = "Failed to serialize transaction base";
return true;
}
const cryptonote::blobdata pruned = ss.str();
const crypto::hash prunable_hash = tx.version == 1 ? crypto::null_hash : get_transaction_prunable_hash(tx);
sorted_txs.push_back(std::make_tuple(h, pruned, prunable_hash, std::string(i->tx_blob, pruned.size())));
missed_txs.erase(std::find(missed_txs.begin(), missed_txs.end(), h));
pool_tx_hashes.insert(h);
const std::string hash_string = epee::string_tools::pod_to_hex(h);
for (const auto &ti: pool_tx_info)
{
if (ti.id_hash == hash_string)
{
per_tx_pool_tx_info.insert(std::make_pair(h, ti));
break;
}
}
++found_in_pool;
}
}
txs = sorted_txs;
}
LOG_PRINT_L2("Found " << found_in_pool << "/" << vh.size() << " transactions in the pool");
}
CHECK_AND_ASSERT_MES(txs.size() + missed_txs.size() == vh.size(), false, "mismatched number of txs");
auto txhi = req.txs_hashes.cbegin();
auto vhi = vh.cbegin();
auto missedi = missed_txs.cbegin();
for(auto& tx: txs)
{
res.txs.push_back(COMMAND_RPC_GET_TRANSACTIONS::entry());
COMMAND_RPC_GET_TRANSACTIONS::entry &e = res.txs.back();
while (missedi != missed_txs.end() && *missedi == *vhi)
{
++vhi;
++txhi;
++missedi;
}
crypto::hash tx_hash = *vhi++;
CHECK_AND_ASSERT_MES(tx_hash == std::get<0>(tx), false, "mismatched tx hash");
e.tx_hash = *txhi++;
e.prunable_hash = epee::string_tools::pod_to_hex(std::get<2>(tx));
if (req.split || req.prune || std::get<3>(tx).empty())
{
// use splitted form with pruned and prunable (filled only when prune=false and the daemon has it), leaving as_hex as empty
e.pruned_as_hex = string_tools::buff_to_hex_nodelimer(std::get<1>(tx));
if (!req.prune)
e.prunable_as_hex = string_tools::buff_to_hex_nodelimer(std::get<3>(tx));
if (req.decode_as_json)
{
cryptonote::blobdata tx_data;
cryptonote::transaction t;
if (req.prune || std::get<3>(tx).empty())
{
// decode pruned tx to JSON
tx_data = std::get<1>(tx);
if (cryptonote::parse_and_validate_tx_base_from_blob(tx_data, t))
{
pruned_transaction pruned_tx{t};
e.as_json = obj_to_json_str(pruned_tx);
}
else
{
res.status = "Failed to parse and validate pruned tx from blob";
return true;
}