onion-wownero-blockchain-ex.../src/tools.h
2017-01-19 04:22:01 +00:00

332 lines
7.8 KiB
C++

//
// Created by mwo on 5/11/15.
//
#ifndef XMREG01_TOOLS_H
#define XMREG01_TOOLS_H
#define PATH_SEPARARTOR '/'
#define XMR_AMOUNT(value) \
static_cast<double>(value) / 1e12
#define REMOVE_HASH_BRAKETS(a_hash) \
a_hash.substr(1, a_hash.size()-2)
#include "monero_headers.h"
#include "../ext/infix_iterator.h"
#include "../ext/date/tz.h"
#include "../ext/format.h"
#include "../ext/json.hpp"
#include "../ext/member_checker.h"
#include <boost/lexical_cast.hpp>
#include <boost/filesystem.hpp>
#include <boost/optional.hpp>
#include <boost/date_time/posix_time/posix_time.hpp>
#include <string>
#include <vector>
#include <array>
#include <iterator>
#include <algorithm>
/**
* Some helper functions used in the example.
* Names are rather self-explanatory, so I think
* there is no reason for any detailed explanations here
*/
namespace xmreg
{
using namespace cryptonote;
using namespace crypto;
using namespace std;
namespace bf = boost::filesystem;
namespace pt = boost::posix_time;
namespace gt = boost::gregorian;
namespace lt = boost::local_time;
using json = nlohmann::json;
struct outputs_visitor
{
std::vector<crypto::public_key >& m_output_keys;
const Blockchain& m_bch;
outputs_visitor(std::vector<crypto::public_key>& output_keys, const Blockchain& bch) :
m_output_keys(output_keys), m_bch(bch)
{
}
bool handle_output(uint64_t unlock_time, const crypto::public_key &pubkey)
{
m_output_keys.push_back(pubkey);
return true;
}
};
template <typename T>
bool
parse_str_secret_key(const string& key_str, T& secret_key);
bool
get_tx_pub_key_from_str_hash(Blockchain& core_storage,
const string& hash_str,
transaction& tx);
bool
parse_str_address(const string& address_str,
account_public_address& address,
bool testnet = false);
inline bool
is_separator(char c);
string
print_address(const account_public_address& address,
bool testnet = false);
string
print_sig (const signature& sig);
string
remove_trailing_path_separator(const string& in_path);
bf::path
remove_trailing_path_separator(const bf::path& in_path);
string
timestamp_to_str(time_t timestamp, const char* format = "%F %T");
string
timestamp_to_str_local(time_t timestamp, const char* format = "%F %T");
ostream&
operator<< (ostream& os, const account_public_address& addr);
string
get_default_lmdb_folder(bool testnet = false);
bool
generate_key_image(const crypto::key_derivation& derivation,
const std::size_t output_index,
const crypto::secret_key& sec_key,
const crypto::public_key& pub_key,
crypto::key_image& key_img);
bool
get_blockchain_path(const boost::optional<string>& bc_path,
bf::path& blockchain_path,
bool testnet = false);
uint64_t
sum_money_in_outputs(const transaction& tx);
pair<uint64_t, uint64_t>
sum_money_in_outputs(const string& json_str);
uint64_t
sum_money_in_inputs(const transaction& tx);
pair<uint64_t, uint64_t>
sum_money_in_inputs(const string& json_str);
array<uint64_t, 2>
sum_money_in_tx(const transaction& tx);
array<uint64_t, 2>
sum_money_in_txs(const vector<transaction>& txs);
uint64_t
sum_fees_in_txs(const vector<transaction>& txs);
uint64_t
get_mixin_no(const transaction& tx);
vector<uint64_t>
get_mixin_no(const string& json_str);
vector<uint64_t>
get_mixin_no_in_txs(const vector<transaction>& txs);
vector<pair<txout_to_key, uint64_t>>
get_ouputs(const transaction& tx);
vector<tuple<txout_to_key, uint64_t, uint64_t>>
get_ouputs_tuple(const transaction& tx);
vector<txin_to_key>
get_key_images(const transaction& tx);
bool
get_payment_id(const vector<uint8_t>& extra,
crypto::hash& payment_id,
crypto::hash8& payment_id8);
bool
get_payment_id(const transaction& tx,
crypto::hash& payment_id,
crypto::hash8& payment_id8);
inline double
get_xmr(uint64_t core_amount)
{
return static_cast<double>(core_amount) / 1e12;
}
array<size_t, 5>
timestamp_difference(uint64_t t1, uint64_t t2);
string
read(string filename);
/**
* prints an iterable such as vector
*/
template<typename T>
void print_iterable(const T & elems) {
infix_ostream_iterator<typename T::value_type>
oiter(std::cout, ",");
std::cout << "[";
std::copy(elems.begin(), elems.end(),oiter);
std::cout << "]" << std::endl;
}
pair<string, double>
timestamps_time_scale(const vector<uint64_t>& timestamps,
uint64_t timeN, uint64_t resolution = 80,
uint64_t time0 = 1397818193 /* timestamp of the second block */);
time_t
ptime_to_time_t(const pt::ptime& in_ptime);
bool
decode_ringct(const rct::rctSig & rv,
const crypto::public_key pub,
const crypto::secret_key &sec,
unsigned int i,
rct::key & mask,
uint64_t & amount);
bool
url_decode(const std::string& in, std::string& out);
map<std::string, std::string>
parse_crow_post_data(const string& req_body);
// from wallet2::decrypt
string
decrypt(const std::string &ciphertext,
const crypto::secret_key &skey,
bool authenticated = true);
// based on
// crypto::public_key wallet2::get_tx_pub_key_from_received_outs(const tools::wallet2::transfer_details &td) const
public_key
get_tx_pub_key_from_received_outs(const transaction &tx);
date::sys_seconds
parse(const std::string& str, string format="%Y-%m-%d %H:%M:%S");
static
string
xmr_amount_to_str(const uint64_t& xmr_amount,
string _format="{:0.12f}",
bool zero_to_question_mark=true)
{
string amount_str = "?";
if (!zero_to_question_mark)
{
amount_str = fmt::format(_format, XMR_AMOUNT(xmr_amount));
}
else
{
if (xmr_amount > 0 && zero_to_question_mark == true)
{
amount_str = fmt::format(_format, XMR_AMOUNT(xmr_amount));
}
}
return amount_str;
}
bool
is_output_ours(const size_t& output_index,
const transaction& tx,
const public_key& pub_tx_key,
const secret_key& private_view_key,
const public_key& public_spend_key);
bool
get_real_output_for_key_image(const key_image& ki,
const transaction& tx,
const secret_key& private_view_key,
const public_key& public_spend_key,
uint64_t output_idx,
public_key output_pub_key);
// based on http://stackoverflow.com/a/9943098/248823
template<typename Iterator, typename Func>
void chunks(Iterator begin,
Iterator end,
iterator_traits<string::iterator>::difference_type k,
Func f)
{
Iterator chunk_begin;
Iterator chunk_end;
chunk_end = chunk_begin = begin;
do
{
if(std::distance(chunk_end, end) < k)
chunk_end = end;
else
std::advance(chunk_end, k);
f(chunk_begin,chunk_end);
chunk_begin = chunk_end;
}
while(std::distance(chunk_begin,end) > 0);
}
bool
make_tx_from_json(const string& json_str, transaction& tx);
string
make_printable(const string& in_s);
string
get_human_readable_timestamp(uint64_t ts);
// Get the median of an unordered set of numbers of arbitrary
// type without modifying the underlying dataset.
// taken from http://stackoverflow.com/a/19695285
template <typename It>
typename std::iterator_traits<It>::value_type
calc_median(It it_begin, It it_end)
{
using T = typename std::iterator_traits<It>::value_type;
std::vector<T> data(it_begin, it_end);
std::nth_element(data.begin(), data.begin() + data.size() / 2, data.end());
return data[data.size() / 2];
}
}
#endif //XMREG01_TOOLS_H