From 55fa0479a0db599d81500e57e355124f1fb9c05e Mon Sep 17 00:00:00 2001 From: moneromooo-monero Date: Sat, 17 Dec 2016 11:25:15 +0000 Subject: [PATCH] rpc: new function and RPC to get alternative chain info --- src/cryptonote_core/blockchain.cpp | 32 ++++++++++++++++++++++ src/cryptonote_core/blockchain.h | 7 +++++ src/daemon/command_parser_executor.cpp | 11 ++++++++ src/daemon/command_parser_executor.h | 2 ++ src/daemon/command_server.cpp | 5 ++++ src/daemon/rpc_command_executor.cpp | 33 +++++++++++++++++++++++ src/daemon/rpc_command_executor.h | 2 ++ src/rpc/core_rpc_server.cpp | 18 +++++++++++++ src/rpc/core_rpc_server.h | 2 ++ src/rpc/core_rpc_server_commands_defs.h | 35 +++++++++++++++++++++++++ 10 files changed, 147 insertions(+) diff --git a/src/cryptonote_core/blockchain.cpp b/src/cryptonote_core/blockchain.cpp index 70b2ccc79..702d98944 100644 --- a/src/cryptonote_core/blockchain.cpp +++ b/src/cryptonote_core/blockchain.cpp @@ -3880,6 +3880,38 @@ std::map> Blockchain:: get_ou return m_db->get_output_histogram(amounts, unlocked, recent_cutoff); } +std::list> Blockchain::get_alternative_chains() const +{ + std::list> chains; + + for (const auto &i: m_alternative_chains) + { + const crypto::hash &top = i.first; + bool found = false; + for (const auto &j: m_alternative_chains) + { + if (j.second.bl.prev_id == top) + { + found = true; + break; + } + } + if (!found) + { + uint64_t length = 1; + auto h = i.second.bl.prev_id; + blocks_ext_by_hash::const_iterator prev; + while ((prev = m_alternative_chains.find(h)) != m_alternative_chains.end()) + { + h = prev->second.bl.prev_id; + ++length; + } + chains.push_back(std::make_pair(i.second, length)); + } + } + return chains; +} + void Blockchain::cancel() { m_cancel = true; diff --git a/src/cryptonote_core/blockchain.h b/src/cryptonote_core/blockchain.h index 9afc22657..245dc6e73 100644 --- a/src/cryptonote_core/blockchain.h +++ b/src/cryptonote_core/blockchain.h @@ -844,6 +844,13 @@ namespace cryptonote void block_longhash_worker(const uint64_t height, const std::vector &blocks, std::unordered_map &map) const; + /** + * @brief returns a set of known alternate chains + * + * @return a list of chains + */ + std::list> get_alternative_chains() const; + void cancel(); private: diff --git a/src/daemon/command_parser_executor.cpp b/src/daemon/command_parser_executor.cpp index 88b77f76d..f07ef1616 100644 --- a/src/daemon/command_parser_executor.cpp +++ b/src/daemon/command_parser_executor.cpp @@ -482,4 +482,15 @@ bool t_command_parser_executor::print_coinbase_tx_sum(const std::vector& args) +{ + if(args.size()) + { + std::cout << "No parameters allowed" << std::endl; + return false; + } + + return m_executor.alt_chain_info(); +} + } // namespace daemonize diff --git a/src/daemon/command_parser_executor.h b/src/daemon/command_parser_executor.h index 93b1fab56..cc929db00 100644 --- a/src/daemon/command_parser_executor.h +++ b/src/daemon/command_parser_executor.h @@ -119,6 +119,8 @@ public: bool output_histogram(const std::vector& args); bool print_coinbase_tx_sum(const std::vector& args); + + bool alt_chain_info(const std::vector& args); }; } // namespace daemonize diff --git a/src/daemon/command_server.cpp b/src/daemon/command_server.cpp index 729b19cbf..88c49d111 100644 --- a/src/daemon/command_server.cpp +++ b/src/daemon/command_server.cpp @@ -225,6 +225,11 @@ t_command_server::t_command_server( , std::bind(&t_command_parser_executor::print_coinbase_tx_sum, &m_parser, p::_1) , "Print sum of coinbase transactions (start height, block count)" ); + m_command_lookup.set_handler( + "alt_chain_info" + , std::bind(&t_command_parser_executor::alt_chain_info, &m_parser, p::_1) + , "Print information about alternative chains" + ); } bool t_command_server::process_command_str(const std::string& cmd) diff --git a/src/daemon/rpc_command_executor.cpp b/src/daemon/rpc_command_executor.cpp index 65b42cc47..41b1fad24 100644 --- a/src/daemon/rpc_command_executor.cpp +++ b/src/daemon/rpc_command_executor.cpp @@ -1367,5 +1367,38 @@ bool t_rpc_command_executor::print_coinbase_tx_sum(uint64_t height, uint64_t cou return true; } +bool t_rpc_command_executor::alt_chain_info() +{ + cryptonote::COMMAND_RPC_GET_ALTERNATE_CHAINS::request req; + cryptonote::COMMAND_RPC_GET_ALTERNATE_CHAINS::response res; + epee::json_rpc::error error_resp; + + std::string fail_message = "Unsuccessful"; + + if (m_is_rpc) + { + if (!m_rpc_client->json_rpc_request(req, res, "get_alternate_chains", fail_message.c_str())) + { + return true; + } + } + else + { + if (!m_rpc_server->on_get_alternate_chains(req, res, error_resp)) + { + tools::fail_msg_writer() << fail_message.c_str(); + return true; + } + } + + tools::msg_writer() << boost::lexical_cast(res.chains.size()) << " alternate chains found:"; + for (const auto chain: res.chains) + { + tools::msg_writer() << chain.length << " blocks long, branching at height " << (chain.height - chain.length + 1) + << ", difficulty " << chain.difficulty << ": " << chain.block_hash; + } + return true; +} + }// namespace daemonize diff --git a/src/daemon/rpc_command_executor.h b/src/daemon/rpc_command_executor.h index c1c99155b..a6c712c04 100644 --- a/src/daemon/rpc_command_executor.h +++ b/src/daemon/rpc_command_executor.h @@ -137,6 +137,8 @@ public: bool output_histogram(uint64_t min_count, uint64_t max_count); bool print_coinbase_tx_sum(uint64_t height, uint64_t count); + + bool alt_chain_info(); }; } // namespace daemonize diff --git a/src/rpc/core_rpc_server.cpp b/src/rpc/core_rpc_server.cpp index 5bf500733..c2ff63fc7 100644 --- a/src/rpc/core_rpc_server.cpp +++ b/src/rpc/core_rpc_server.cpp @@ -1337,6 +1337,24 @@ namespace cryptonote return true; } //------------------------------------------------------------------------------------------------------------------------------ + bool core_rpc_server::on_get_alternate_chains(const COMMAND_RPC_GET_ALTERNATE_CHAINS::request& req, COMMAND_RPC_GET_ALTERNATE_CHAINS::response& res, epee::json_rpc::error& error_resp) + { + try + { + std::list> chains = m_core.get_blockchain_storage().get_alternative_chains(); + for (const auto &i: chains) + { + res.chains.push_back(COMMAND_RPC_GET_ALTERNATE_CHAINS::chain_info{epee::string_tools::pod_to_hex(get_block_hash(i.first.bl)), i.first.height, i.second, i.first.cumulative_difficulty}); + } + res.status = CORE_RPC_STATUS_OK; + } + catch (...) + { + res.status = "Error retrieving alternate chains"; + } + return true; + } + //------------------------------------------------------------------------------------------------------------------------------ bool core_rpc_server::on_out_peers(const COMMAND_RPC_OUT_PEERS::request& req, COMMAND_RPC_OUT_PEERS::response& res) { // TODO diff --git a/src/rpc/core_rpc_server.h b/src/rpc/core_rpc_server.h index b7f6cdd60..0c0668f3b 100644 --- a/src/rpc/core_rpc_server.h +++ b/src/rpc/core_rpc_server.h @@ -118,6 +118,7 @@ namespace cryptonote MAP_JON_RPC_WE("get_version", on_get_version, COMMAND_RPC_GET_VERSION) MAP_JON_RPC_WE("get_coinbase_tx_sum", on_get_coinbase_tx_sum, COMMAND_RPC_GET_COINBASE_TX_SUM) MAP_JON_RPC_WE("get_fee_estimate", on_get_per_kb_fee_estimate, COMMAND_RPC_GET_PER_KB_FEE_ESTIMATE) + MAP_JON_RPC_WE_IF("get_alternate_chains",on_get_alternate_chains, COMMAND_RPC_GET_ALTERNATE_CHAINS, !m_restricted) END_JSON_RPC_MAP() END_URI_MAP2() @@ -166,6 +167,7 @@ namespace cryptonote bool on_get_version(const COMMAND_RPC_GET_VERSION::request& req, COMMAND_RPC_GET_VERSION::response& res, epee::json_rpc::error& error_resp); bool on_get_coinbase_tx_sum(const COMMAND_RPC_GET_COINBASE_TX_SUM::request& req, COMMAND_RPC_GET_COINBASE_TX_SUM::response& res, epee::json_rpc::error& error_resp); bool on_get_per_kb_fee_estimate(const COMMAND_RPC_GET_PER_KB_FEE_ESTIMATE::request& req, COMMAND_RPC_GET_PER_KB_FEE_ESTIMATE::response& res, epee::json_rpc::error& error_resp); + bool on_get_alternate_chains(const COMMAND_RPC_GET_ALTERNATE_CHAINS::request& req, COMMAND_RPC_GET_ALTERNATE_CHAINS::response& res, epee::json_rpc::error& error_resp); //----------------------- private: diff --git a/src/rpc/core_rpc_server_commands_defs.h b/src/rpc/core_rpc_server_commands_defs.h index 23fcb0a92..b09cad235 100644 --- a/src/rpc/core_rpc_server_commands_defs.h +++ b/src/rpc/core_rpc_server_commands_defs.h @@ -1336,4 +1336,39 @@ namespace cryptonote END_KV_SERIALIZE_MAP() }; }; + + struct COMMAND_RPC_GET_ALTERNATE_CHAINS + { + struct request + { + BEGIN_KV_SERIALIZE_MAP() + END_KV_SERIALIZE_MAP() + }; + + struct chain_info + { + std::string block_hash; + uint64_t height; + uint64_t length; + uint64_t difficulty; + + BEGIN_KV_SERIALIZE_MAP() + KV_SERIALIZE(block_hash) + KV_SERIALIZE(height) + KV_SERIALIZE(length) + KV_SERIALIZE(difficulty) + END_KV_SERIALIZE_MAP() + }; + + struct response + { + std::string status; + std::list chains; + + BEGIN_KV_SERIALIZE_MAP() + KV_SERIALIZE(status) + KV_SERIALIZE(chains) + END_KV_SERIALIZE_MAP() + }; + }; }