void subscribe_manager::do_renew( const incoming_message& request, queue_send_callback queue_send) { payment_address addr_key; if (!deserialize_address(addr_key, request.data())) { log_warning(LOG_SUBSCRIBER) << "Incorrect format for subscribe renew."; return; } const posix_time::ptime now = second_clock::universal_time(); // Find entry and update expiry_time. auto range = subs_.equal_range(addr_key); for (auto it = range.first; it != range.second; ++it) { subscription& sub = it->second; // Only update subscriptions which were created by // the same client as this request originated from. if (sub.client_origin != request.origin()) continue; // Future expiry time. sub.expiry_time = now + sub_expiry; } // Send response. data_chunk result(4); auto serial = make_serializer(result.begin()); write_error_code(serial, std::error_code()); outgoing_message response(request, result); queue_send(response); }
bool backend_cluster::process_filters(const incoming_message& response) { auto filter_it = filters_.find(response.command()); if (filter_it == filters_.end()) return false; filter_it->second(response.data(), response.origin()); return true; }
bool backend_cluster::process_as_reply(const incoming_message& response) { auto handle_it = handlers_.find(response.id()); // Unknown response. Not in our map. if (handle_it == handlers_.end()) return false; handle_it->second(response.data(), response.origin()); handlers_.erase(handle_it); size_t n_erased = retry_queue_.erase(response.id()); BITCOIN_ASSERT(n_erased == 1); return true; }
void blockchain_fetch_stealth(node_impl& node, const incoming_message& request, queue_send_callback queue_send) { const data_chunk& data = request.data(); if (data.empty()) { log_error(LOG_WORKER) << "Incorrect data size (empty) for blockchain.fetch_stealth"; return; } auto deserial = make_deserializer(data.begin(), data.end()); // number_bits uint8_t number_bits = deserial.read_byte(); stealth_prefix prefix(number_bits); log_info(LOG_WORKER) << data.size() << " " << prefix.num_blocks(); if (data.size() != 1 + prefix.num_blocks() + 4) { log_error(LOG_WORKER) << "Incorrect data size (" << data.size() << ") for blockchain.fetch_stealth"; return; } // actual bitfield data data_chunk bitfield = deserial.read_data(prefix.num_blocks()); boost::from_block_range(bitfield.begin(), bitfield.end(), prefix); // from_height size_t from_height = deserial.read_4_bytes(); node.blockchain().fetch_stealth(prefix, std::bind(stealth_fetched, _1, _2, request, queue_send), from_height); }
void protocol_broadcast_transaction(server_node& node, const incoming_message& request, queue_send_callback queue_send) { const data_chunk& raw_tx = request.data(); chain::transaction tx; data_chunk result(4); auto serial = make_serializer(result.begin()); if (!tx.from_data(raw_tx)) { // error write_error_code(serial, error::bad_stream); outgoing_message response(request, result); queue_send(response); return; } auto ignore_send = [](const std::error_code&, size_t) {}; // Send and hope for the best! node.protocol().broadcast(tx, ignore_send); // Response back to user saying everything is fine. write_error_code(serial, std::error_code()); log_debug(LOG_SERVICE) << "protocol.broadcast_transaction() finished. Sending response."; outgoing_message response(request, result); queue_send(response); }
std::error_code subscribe_manager::add_subscription( const incoming_message& request, queue_send_callback queue_send) { payment_address addr_key; if (!deserialize_address(addr_key, request.data())) { log_warning(LOG_SUBSCRIBER) << "Incorrect format for subscribe data."; return error::bad_stream; } // Now create subscription. const posix_time::ptime now = second_clock::universal_time(); // Limit absolute number of subscriptions to prevent exhaustion attacks. if (subs_.size() >= subscribe_limit_) return error::pool_filled; subs_.emplace(addr_key, subscription{ now + sub_expiry, request.origin(), queue_send}); return std::error_code(); }
void fetch_block_header_by_height(node_impl& node, const incoming_message& request, queue_send_callback queue_send) { const data_chunk& data = request.data(); BITCOIN_ASSERT(data.size() == 4); auto deserial = make_deserializer(data.begin(), data.end()); size_t height = deserial.read_4_bytes(); node.blockchain().fetch_block_header(height, std::bind(block_header_fetched, _1, _2, request, queue_send)); }
void fetch_block_header_by_hash(node_impl& node, const incoming_message& request, queue_send_callback queue_send) { const data_chunk& data = request.data(); BITCOIN_ASSERT(data.size() == 32); auto deserial = make_deserializer(data.begin(), data.end()); const hash_digest blk_hash = deserial.read_hash(); node.blockchain().fetch_block_header(blk_hash, std::bind(block_header_fetched, _1, _2, request, queue_send)); }
void subscribe_manager::do_subscribe( const incoming_message& request, zmq_socket_ptr socket) { payment_address addr_key; if (!deserialize_address(addr_key, request.data())) { log_warning(LOG_SUBSCRIBER) << "Incorrect format for subscribe data."; return; } // Now create subscription. const posix_time::ptime now = second_clock::universal_time(); subs_.emplace(addr_key, subscription{ now + sub_expiry, request.origin(), socket}); // Send response. data_chunk result(4); auto serial = make_serializer(result.begin()); write_error_code(serial, std::error_code()); outgoing_message response(request, result); response.send(*socket); }
void blockchain_fetch_last_height(node_impl& node, const incoming_message& request, queue_send_callback queue_send) { const data_chunk& data = request.data(); if (!data.empty()) { log_error(LOG_WORKER) << "Incorrect data size for blockchain.fetch_last_height"; return; } node.blockchain().fetch_last_height( std::bind(last_height_fetched, _1, _2, request, queue_send)); }
bool unwrap_fetch_transaction_args( hash_digest& tx_hash, const incoming_message& request) { const data_chunk& data = request.data(); if (data.size() != 32) { log_error(LOG_WORKER) << "Incorrect data size for *.fetch_transaction"; return false; } auto deserial = make_deserializer(data.begin(), data.end()); tx_hash = deserial.read_hash(); return true; }
void blockchain_fetch_block_header(node_impl& node, const incoming_message& request, queue_send_callback queue_send) { const data_chunk& data = request.data(); if (data.size() == 32) fetch_block_header_by_hash(node, request, queue_send); else if (data.size() == 4) fetch_block_header_by_height(node, request, queue_send); else { log_error(LOG_WORKER) << "Incorrect data size for blockchain.fetch_block_header"; return; } }
void blockchain_fetch_block_height(node_impl& node, const incoming_message& request, queue_send_callback queue_send) { const data_chunk& data = request.data(); if (data.size() != 32) { log_error(LOG_WORKER) << "Incorrect data size for blockchain.fetch_block_height"; return; } auto deserial = make_deserializer(data.begin(), data.end()); const hash_digest blk_hash = deserial.read_hash(); node.blockchain().fetch_block_height(blk_hash, std::bind(block_height_fetched, _1, _2, request, queue_send)); }
void blockchain_fetch_spend(node_impl& node, const incoming_message& request, queue_send_callback queue_send) { const data_chunk& data = request.data(); if (data.size() != 36) { log_error(LOG_WORKER) << "Incorrect data size for blockchain.fetch_spend"; return; } auto deserial = make_deserializer(data.begin(), data.end()); output_point outpoint; outpoint.hash = deserial.read_hash(); outpoint.index = deserial.read_4_bytes(); node.blockchain().fetch_spend(outpoint, std::bind(spend_fetched, _1, _2, request, queue_send)); }
bool unwrap_fetch_history_args( payment_address& payaddr, uint32_t& from_height, const incoming_message& request) { const data_chunk& data = request.data(); if (data.size() != 1 + short_hash_size + 4) { log_error(LOG_WORKER) << "Incorrect data size for .fetch_history"; return false; } auto deserial = make_deserializer(data.begin(), data.end()); uint8_t version_byte = deserial.read_byte(); short_hash hash = deserial.read_short_hash(); from_height = deserial.read_4_bytes(); BITCOIN_ASSERT(deserial.iterator() == data.end()); payaddr.set(version_byte, hash); return true; }
void transaction_pool_validate(node_impl& node, const incoming_message& request, queue_send_callback queue_send) { const data_chunk& raw_tx = request.data(); transaction_type tx; try { satoshi_load(raw_tx.begin(), raw_tx.end(), tx); } catch (end_of_stream) { // error transaction_validated(error::bad_stream, index_list(), request, queue_send); return; } node.transaction_pool().validate(tx, std::bind(transaction_validated, _1, _2, request, queue_send)); }
outgoing_message::outgoing_message( const incoming_message& request, const data_chunk& data) : dest_(request.origin()), command_(request.command()), id_(request.id()), data_(data) { }