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Diffstat (limited to 'src/wallet/wallet_rpc_payments.cpp')
| -rw-r--r-- | src/wallet/wallet_rpc_payments.cpp | 196 |
1 files changed, 196 insertions, 0 deletions
diff --git a/src/wallet/wallet_rpc_payments.cpp b/src/wallet/wallet_rpc_payments.cpp new file mode 100644 index 000000000..41696d13b --- /dev/null +++ b/src/wallet/wallet_rpc_payments.cpp @@ -0,0 +1,196 @@ +// Copyright (c) 2018-2019, 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. + +#include <boost/optional/optional.hpp> +#include <boost/utility/value_init.hpp> +#include "include_base_utils.h" +#include "cryptonote_config.h" +#include "wallet_rpc_helpers.h" +#include "wallet2.h" +#include "cryptonote_basic/cryptonote_format_utils.h" +#include "rpc/core_rpc_server_commands_defs.h" +#include "rpc/rpc_payment_signature.h" +#include "misc_language.h" +#include "cryptonote_basic/cryptonote_basic_impl.h" +#include "int-util.h" +#include "crypto/crypto.h" +#include "cryptonote_basic/blobdatatype.h" +#include "common/i18n.h" +#include "common/util.h" + +#undef MONERO_DEFAULT_LOG_CATEGORY +#define MONERO_DEFAULT_LOG_CATEGORY "wallet.wallet2.rpc_payments" + +#define RPC_PAYMENT_POLL_PERIOD 10 /* seconds*/ + +namespace tools +{ +//---------------------------------------------------------------------------------------------------- +std::string wallet2::get_client_signature() const +{ + return cryptonote::make_rpc_payment_signature(m_rpc_client_secret_key); +} +//---------------------------------------------------------------------------------------------------- +bool wallet2::get_rpc_payment_info(bool mining, bool &payment_required, uint64_t &credits, uint64_t &diff, uint64_t &credits_per_hash_found, cryptonote::blobdata &hashing_blob, uint64_t &height, uint64_t &seed_height, crypto::hash &seed_hash, crypto::hash &next_seed_hash, uint32_t &cookie) +{ + boost::optional<std::string> result = m_node_rpc_proxy.get_rpc_payment_info(mining, payment_required, credits, diff, credits_per_hash_found, hashing_blob, height, seed_height, seed_hash, next_seed_hash, cookie); + credits = m_rpc_payment_state.credits; + if (result && *result != CORE_RPC_STATUS_OK) + return false; + return true; +} +//---------------------------------------------------------------------------------------------------- +bool wallet2::daemon_requires_payment() +{ + bool payment_required = false; + uint64_t credits, diff, credits_per_hash_found, height, seed_height; + uint32_t cookie; + cryptonote::blobdata blob; + crypto::hash seed_hash, next_seed_hash; + return get_rpc_payment_info(false, payment_required, credits, diff, credits_per_hash_found, blob, height, seed_height, seed_hash, next_seed_hash, cookie) && payment_required; +} +//---------------------------------------------------------------------------------------------------- +bool wallet2::make_rpc_payment(uint32_t nonce, uint32_t cookie, uint64_t &credits, uint64_t &balance) +{ + cryptonote::COMMAND_RPC_ACCESS_SUBMIT_NONCE::request req = AUTO_VAL_INIT(req); + cryptonote::COMMAND_RPC_ACCESS_SUBMIT_NONCE::response res = AUTO_VAL_INIT(res); + req.nonce = nonce; + req.cookie = cookie; + m_daemon_rpc_mutex.lock(); + uint64_t pre_call_credits = m_rpc_payment_state.credits; + req.client = get_client_signature(); + epee::json_rpc::error error; + bool r = epee::net_utils::invoke_http_json_rpc("/json_rpc", "rpc_access_submit_nonce", req, res, error, m_http_client, rpc_timeout); + m_daemon_rpc_mutex.unlock(); + THROW_ON_RPC_RESPONSE_ERROR_GENERIC(r, error, res, "rpc_access_submit_nonce"); + THROW_WALLET_EXCEPTION_IF(res.credits < pre_call_credits, error::wallet_internal_error, "RPC payment did not increase balance"); + if (m_rpc_payment_state.top_hash != res.top_hash) + { + m_rpc_payment_state.top_hash = res.top_hash; + m_rpc_payment_state.stale = true; + } + + m_rpc_payment_state.credits = res.credits; + balance = res.credits; + credits = balance - pre_call_credits; + return true; +} +//---------------------------------------------------------------------------------------------------- +bool wallet2::search_for_rpc_payment(uint64_t credits_target, const std::function<bool(uint64_t, uint64_t)> &startfunc, const std::function<bool(unsigned)> &contfunc, const std::function<bool(uint64_t)> &foundfunc, const std::function<void(const std::string&)> &errorfunc) +{ + bool need_payment = false; + bool payment_required; + uint64_t credits, diff, credits_per_hash_found, height, seed_height; + uint32_t cookie; + unsigned int n_hashes = 0; + cryptonote::blobdata hashing_blob; + crypto::hash seed_hash, next_seed_hash; + try + { + need_payment = get_rpc_payment_info(false, payment_required, credits, diff, credits_per_hash_found, hashing_blob, height, seed_height, seed_hash, next_seed_hash, cookie) && payment_required && credits < credits_target; + if (!need_payment) + return true; + if (!startfunc(diff, credits_per_hash_found)) + return true; + } + catch (const std::exception &e) { return false; } + + static std::atomic<uint32_t> nonce(0); + while (contfunc(n_hashes)) + { + try + { + need_payment = get_rpc_payment_info(true, payment_required, credits, diff, credits_per_hash_found, hashing_blob, height, seed_height, seed_hash, next_seed_hash, cookie) && payment_required && credits < credits_target; + if (!need_payment) + return true; + } + catch (const std::exception &e) { return false; } + if (hashing_blob.empty()) + { + MERROR("Bad hashing blob from daemon"); + if (errorfunc) + errorfunc("Bad hashing blob from daemon, trying again"); + epee::misc_utils::sleep_no_w(1000); + continue; + } + + crypto::hash hash; + const uint32_t local_nonce = nonce++; // wrapping's OK + *(uint32_t*)(hashing_blob.data() + 39) = SWAP32LE(local_nonce); + const uint8_t major_version = hashing_blob[0]; + if (major_version >= RX_BLOCK_VERSION) + { + const int miners = 1; + crypto::rx_slow_hash(height, seed_height, seed_hash.data, hashing_blob.data(), hashing_blob.size(), hash.data, miners, 0); + } + else + { + int cn_variant = hashing_blob[0] >= 7 ? hashing_blob[0] - 6 : 0; + crypto::cn_slow_hash(hashing_blob.data(), hashing_blob.size(), hash, cn_variant, height); + } + ++n_hashes; + if (cryptonote::check_hash(hash, diff)) + { + uint64_t credits, balance; + try + { + make_rpc_payment(local_nonce, cookie, credits, balance); + if (credits != credits_per_hash_found) + { + MERROR("Found nonce, but daemon did not credit us with the expected amount"); + if (errorfunc) + errorfunc("Found nonce, but daemon did not credit us with the expected amount"); + return false; + } + MDEBUG("Found nonce " << local_nonce << " at diff " << diff << ", gets us " << credits_per_hash_found << ", now " << balance << " credits"); + if (!foundfunc(credits)) + break; + } + catch (const tools::error::wallet_coded_rpc_error &e) + { + MWARNING("Found a local_nonce at diff " << diff << ", but failed to send it to the daemon"); + if (errorfunc) + errorfunc("Found nonce, but daemon errored out with error " + std::to_string(e.code()) + ": " + e.status() + ", continuing"); + } + catch (const std::exception &e) + { + MWARNING("Found a local_nonce at diff " << diff << ", but failed to send it to the daemon"); + if (errorfunc) + errorfunc("Found nonce, but daemon errored out with: '" + std::string(e.what()) + "', continuing"); + } + } + } + return true; +} +//---------------------------------------------------------------------------------------------------- +void wallet2::check_rpc_cost(const char *call, uint64_t post_call_credits, uint64_t pre_call_credits, double expected_cost) +{ + return tools::check_rpc_cost(m_rpc_payment_state, call, post_call_credits, pre_call_credits, expected_cost); +} +//---------------------------------------------------------------------------------------------------- +} |