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246 lines
13 KiB
C++
246 lines
13 KiB
C++
// Copyright (c) 2014-2018, The Monero Project
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//
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// All rights reserved.
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//
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// Redistribution and use in source and binary forms, with or without modification, are
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// permitted provided that the following conditions are met:
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//
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// 1. Redistributions of source code must retain the above copyright notice, this list of
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// conditions and the following disclaimer.
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//
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// 2. Redistributions in binary form must reproduce the above copyright notice, this list
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// of conditions and the following disclaimer in the documentation and/or other
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// materials provided with the distribution.
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//
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// 3. Neither the name of the copyright holder nor the names of its contributors may be
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// used to endorse or promote products derived from this software without specific
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// prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
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// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
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// THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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// STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
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// THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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//
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// Parts of this file are originally copyright (c) 2012-2013 The Cryptonote developers
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#pragma once
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#include "blobdatatype.h"
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#include "cryptonote_basic_impl.h"
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#include "tx_extra.h"
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#include "account.h"
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#include "subaddress_index.h"
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#include "include_base_utils.h"
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#include "crypto/crypto.h"
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#include "crypto/hash.h"
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#include <unordered_map>
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namespace epee
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{
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class wipeable_string;
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}
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namespace cryptonote
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{
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//---------------------------------------------------------------
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void get_transaction_prefix_hash(const transaction_prefix& tx, crypto::hash& h);
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crypto::hash get_transaction_prefix_hash(const transaction_prefix& tx);
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bool parse_and_validate_tx_prefix_from_blob(const blobdata& tx_blob, transaction_prefix& tx);
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bool parse_and_validate_tx_from_blob(const blobdata& tx_blob, transaction& tx, crypto::hash& tx_hash, crypto::hash& tx_prefix_hash);
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bool parse_and_validate_tx_from_blob(const blobdata& tx_blob, transaction& tx);
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bool parse_and_validate_tx_base_from_blob(const blobdata& tx_blob, transaction& tx);
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template<typename T>
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bool find_tx_extra_field_by_type(const std::vector<tx_extra_field>& tx_extra_fields, T& field, size_t index = 0)
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{
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auto it = std::find_if(tx_extra_fields.begin(), tx_extra_fields.end(), [&index](const tx_extra_field& f) { return typeid(T) == f.type() && !index--; });
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if(tx_extra_fields.end() == it)
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return false;
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field = boost::get<T>(*it);
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return true;
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}
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bool parse_tx_extra(const std::vector<uint8_t>& tx_extra, std::vector<tx_extra_field>& tx_extra_fields);
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bool sort_tx_extra(const std::vector<uint8_t>& tx_extra, std::vector<uint8_t> &sorted_tx_extra, bool allow_partial = false);
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crypto::public_key get_tx_pub_key_from_extra(const std::vector<uint8_t>& tx_extra, size_t pk_index = 0);
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crypto::public_key get_tx_pub_key_from_extra(const transaction_prefix& tx, size_t pk_index = 0);
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crypto::public_key get_tx_pub_key_from_extra(const transaction& tx, size_t pk_index = 0);
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bool add_tx_pub_key_to_extra(transaction& tx, const crypto::public_key& tx_pub_key);
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bool add_tx_pub_key_to_extra(transaction_prefix& tx, const crypto::public_key& tx_pub_key);
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bool add_tx_pub_key_to_extra(std::vector<uint8_t>& tx_extra, const crypto::public_key& tx_pub_key);
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std::vector<crypto::public_key> get_additional_tx_pub_keys_from_extra(const std::vector<uint8_t>& tx_extra);
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std::vector<crypto::public_key> get_additional_tx_pub_keys_from_extra(const transaction_prefix& tx);
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bool add_additional_tx_pub_keys_to_extra(std::vector<uint8_t>& tx_extra, const std::vector<crypto::public_key>& additional_pub_keys);
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bool add_extra_nonce_to_tx_extra(std::vector<uint8_t>& tx_extra, const blobdata& extra_nonce);
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bool remove_field_from_tx_extra(std::vector<uint8_t>& tx_extra, const std::type_info &type);
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void set_payment_id_to_tx_extra_nonce(blobdata& extra_nonce, const crypto::hash& payment_id);
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void set_encrypted_payment_id_to_tx_extra_nonce(blobdata& extra_nonce, const crypto::hash8& payment_id);
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bool get_payment_id_from_tx_extra_nonce(const blobdata& extra_nonce, crypto::hash& payment_id);
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bool get_encrypted_payment_id_from_tx_extra_nonce(const blobdata& extra_nonce, crypto::hash8& payment_id);
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bool is_out_to_acc(const account_keys& acc, const txout_to_key& out_key, const crypto::public_key& tx_pub_key, const std::vector<crypto::public_key>& additional_tx_public_keys, size_t output_index);
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struct subaddress_receive_info
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{
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subaddress_index index;
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crypto::key_derivation derivation;
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};
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boost::optional<subaddress_receive_info> is_out_to_acc_precomp(const std::unordered_map<crypto::public_key, subaddress_index>& subaddresses, const crypto::public_key& out_key, const crypto::key_derivation& derivation, const std::vector<crypto::key_derivation>& additional_derivations, size_t output_index, hw::device &hwdev);
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bool lookup_acc_outs(const account_keys& acc, const transaction& tx, const crypto::public_key& tx_pub_key, const std::vector<crypto::public_key>& additional_tx_public_keys, std::vector<size_t>& outs, uint64_t& money_transfered);
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bool lookup_acc_outs(const account_keys& acc, const transaction& tx, std::vector<size_t>& outs, uint64_t& money_transfered);
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bool get_tx_fee(const transaction& tx, uint64_t & fee);
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uint64_t get_tx_fee(const transaction& tx);
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bool generate_key_image_helper(const account_keys& ack, const std::unordered_map<crypto::public_key, subaddress_index>& subaddresses, const crypto::public_key& out_key, const crypto::public_key& tx_public_key, const std::vector<crypto::public_key>& additional_tx_public_keys, size_t real_output_index, keypair& in_ephemeral, crypto::key_image& ki, hw::device &hwdev);
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bool generate_key_image_helper_precomp(const account_keys& ack, const crypto::public_key& out_key, const crypto::key_derivation& recv_derivation, size_t real_output_index, const subaddress_index& received_index, keypair& in_ephemeral, crypto::key_image& ki, hw::device &hwdev);
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void get_blob_hash(const blobdata& blob, crypto::hash& res);
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crypto::hash get_blob_hash(const blobdata& blob);
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std::string short_hash_str(const crypto::hash& h);
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crypto::hash get_transaction_hash(const transaction& t);
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bool get_transaction_hash(const transaction& t, crypto::hash& res);
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bool get_transaction_hash(const transaction& t, crypto::hash& res, size_t& blob_size);
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bool get_transaction_hash(const transaction& t, crypto::hash& res, size_t* blob_size);
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bool calculate_transaction_prunable_hash(const transaction& t, crypto::hash& res);
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crypto::hash get_transaction_prunable_hash(const transaction& t);
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bool calculate_transaction_hash(const transaction& t, crypto::hash& res, size_t* blob_size);
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crypto::hash get_pruned_transaction_hash(const transaction& t, const crypto::hash &pruned_data_hash);
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blobdata get_block_hashing_blob(const block& b);
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bool calculate_block_hash(const block& b, crypto::hash& res);
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bool get_block_hash(const block& b, crypto::hash& res);
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crypto::hash get_block_hash(const block& b);
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bool get_block_longhash(const block& b, crypto::hash& res, uint64_t height);
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crypto::hash get_block_longhash(const block& b, uint64_t height);
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bool parse_and_validate_block_from_blob(const blobdata& b_blob, block& b);
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bool get_inputs_money_amount(const transaction& tx, uint64_t& money);
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uint64_t get_outs_money_amount(const transaction& tx);
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bool check_inputs_types_supported(const transaction& tx);
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bool check_outs_valid(const transaction& tx);
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bool parse_amount(uint64_t& amount, const std::string& str_amount);
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uint64_t get_transaction_weight(const transaction &tx);
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uint64_t get_transaction_weight(const transaction &tx, size_t blob_size);
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bool check_money_overflow(const transaction& tx);
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bool check_outs_overflow(const transaction& tx);
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bool check_inputs_overflow(const transaction& tx);
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uint64_t get_block_height(const block& b);
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std::vector<uint64_t> relative_output_offsets_to_absolute(const std::vector<uint64_t>& off);
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std::vector<uint64_t> absolute_output_offsets_to_relative(const std::vector<uint64_t>& off);
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void set_default_decimal_point(unsigned int decimal_point = CRYPTONOTE_DISPLAY_DECIMAL_POINT);
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unsigned int get_default_decimal_point();
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std::string get_unit(unsigned int decimal_point = -1);
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std::string print_money(uint64_t amount, unsigned int decimal_point = -1);
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//---------------------------------------------------------------
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template<class t_object>
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bool t_serializable_object_to_blob(const t_object& to, blobdata& b_blob)
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{
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std::stringstream ss;
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binary_archive<true> ba(ss);
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bool r = ::serialization::serialize(ba, const_cast<t_object&>(to));
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b_blob = ss.str();
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return r;
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}
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//---------------------------------------------------------------
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template<class t_object>
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blobdata t_serializable_object_to_blob(const t_object& to)
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{
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blobdata b;
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t_serializable_object_to_blob(to, b);
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return b;
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}
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//---------------------------------------------------------------
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template<class t_object>
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bool get_object_hash(const t_object& o, crypto::hash& res)
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{
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get_blob_hash(t_serializable_object_to_blob(o), res);
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return true;
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}
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//---------------------------------------------------------------
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template<class t_object>
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size_t get_object_blobsize(const t_object& o)
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{
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blobdata b = t_serializable_object_to_blob(o);
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return b.size();
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}
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//---------------------------------------------------------------
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template<class t_object>
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bool get_object_hash(const t_object& o, crypto::hash& res, size_t& blob_size)
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{
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blobdata bl = t_serializable_object_to_blob(o);
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blob_size = bl.size();
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get_blob_hash(bl, res);
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return true;
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}
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//---------------------------------------------------------------
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template <typename T>
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std::string obj_to_json_str(T& obj)
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{
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std::stringstream ss;
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json_archive<true> ar(ss, true);
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bool r = ::serialization::serialize(ar, obj);
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CHECK_AND_ASSERT_MES(r, "", "obj_to_json_str failed: serialization::serialize returned false");
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return ss.str();
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}
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//---------------------------------------------------------------
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// 62387455827 -> 455827 + 7000000 + 80000000 + 300000000 + 2000000000 + 60000000000, where 455827 <= dust_threshold
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template<typename chunk_handler_t, typename dust_handler_t>
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void decompose_amount_into_digits(uint64_t amount, uint64_t dust_threshold, const chunk_handler_t& chunk_handler, const dust_handler_t& dust_handler)
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{
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if (0 == amount)
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{
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return;
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}
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bool is_dust_handled = false;
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uint64_t dust = 0;
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uint64_t order = 1;
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while (0 != amount)
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{
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uint64_t chunk = (amount % 10) * order;
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amount /= 10;
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order *= 10;
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if (dust + chunk <= dust_threshold)
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{
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dust += chunk;
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}
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else
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{
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if (!is_dust_handled && 0 != dust)
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{
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dust_handler(dust);
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is_dust_handled = true;
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}
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if (0 != chunk)
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{
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chunk_handler(chunk);
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}
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}
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}
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if (!is_dust_handled && 0 != dust)
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{
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dust_handler(dust);
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}
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}
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//---------------------------------------------------------------
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blobdata block_to_blob(const block& b);
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bool block_to_blob(const block& b, blobdata& b_blob);
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blobdata tx_to_blob(const transaction& b);
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bool tx_to_blob(const transaction& b, blobdata& b_blob);
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void get_tx_tree_hash(const std::vector<crypto::hash>& tx_hashes, crypto::hash& h);
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crypto::hash get_tx_tree_hash(const std::vector<crypto::hash>& tx_hashes);
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crypto::hash get_tx_tree_hash(const block& b);
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bool is_valid_decomposed_amount(uint64_t amount);
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void get_hash_stats(uint64_t &tx_hashes_calculated, uint64_t &tx_hashes_cached, uint64_t &block_hashes_calculated, uint64_t & block_hashes_cached);
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crypto::secret_key encrypt_key(crypto::secret_key key, const epee::wipeable_string &passphrase);
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crypto::secret_key decrypt_key(crypto::secret_key key, const epee::wipeable_string &passphrase);
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#define CHECKED_GET_SPECIFIC_VARIANT(variant_var, specific_type, variable_name, fail_return_val) \
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CHECK_AND_ASSERT_MES(variant_var.type() == typeid(specific_type), fail_return_val, "wrong variant type: " << variant_var.type().name() << ", expected " << typeid(specific_type).name()); \
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specific_type& variable_name = boost::get<specific_type>(variant_var);
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}
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