onion-wownero-explorer/src/tools.h

//
// Created by marcin 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 "tx_details.h"

#include "../ext/dateparser.h"
#include "../ext/infix_iterator.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>

/**
 * 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;



    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)
        {
            //check tx unlock time
//            if (!m_bch.is_tx_spendtime_unlocked(unlock_time))
//            {
//                LOG_PRINT_L1("One of outputs for one of inputs has wrong tx.unlock_time = " << unlock_time);
//                return false;
//            }

            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");


    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);

    uint64_t
    sum_money_in_inputs(const transaction& tx);

    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_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 void
    enable_monero_log() {
        uint32_t log_level = 0;
        epee::log_space::get_set_log_detalisation_level(true, log_level);
        epee::log_space::log_singletone::add_logger(LOGGER_CONSOLE, NULL, NULL);
    }


    uint64_t
    estimate_bc_height(const string& date, const char* format = "%Y-%m-%d");


    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);

    bool
    get_dummy_account_keys(account_keys& dummy_keys, bool testnet = false);


    // 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);

}

#endif //XMREG01_TOOLS_H