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openmonero/src/utils.cpp

1383 lines
31 KiB

//
// Created by marcin on 5/11/15.
//
#include "utils.h"
#include <codecvt>
namespace xmreg
{
/**
* Get transaction tx using given tx hash. Hash is represent as string here,
* so before we can tap into the blockchain, we need to pare it into
* crypto::hash object.
*/
bool
get_tx_pub_key_from_str_hash(Blockchain& core_storage, const string& hash_str, transaction& tx)
{
crypto::hash tx_hash;
parse_hash256(hash_str, tx_hash);
try
{
// get transaction with given hash
tx = core_storage.get_db().get_tx(tx_hash);
}
catch (const TX_DNE& e)
{
cerr << e.what() << endl;
return false;
}
return true;
}
/**
* Parse monero address in a string form into
* cryptonote::account_public_address object
*/
string
print_sig (const signature& sig)
{
stringstream ss;
ss << "c: <" << epee::string_tools::pod_to_hex(sig.c) << "> "
<< "r: <" << epee::string_tools::pod_to_hex(sig.r) << ">";
return ss.str();
}
/**
* Check if a character is a path seprator
*/
inline bool
is_separator(char c)
{
// default linux path separator
const char separator = PATH_SEPARARTOR;
return c == separator;
}
string
timestamp_to_str_gm(time_t timestamp, const char* format)
{
const time_t* t = &timestamp;
const int TIME_LENGTH = 60;
char str_buff[TIME_LENGTH];
std::tm tmp;
gmtime_r(t, &tmp);
size_t len;
len = std::strftime(str_buff, TIME_LENGTH, format, &tmp);
return string(str_buff, len);
}
string
timestamp_to_str_local(time_t timestamp, const char* format)
{
const int TIME_LENGTH = 60;
char str_buff[TIME_LENGTH];
tm *tm_ptr;
tm_ptr = localtime(&timestamp);
size_t len;
len = std::strftime(str_buff, TIME_LENGTH, format, tm_ptr);
return string(str_buff, len);
}
ostream&
operator<< (ostream& os, const address_parse_info& addr_info)
{
os << get_account_address_as_str(network_type::MAINNET,
addr_info.is_subaddress,
addr_info.address);
return os;
}
/*
* Generate key_image of foran ith output
*/
bool
generate_key_image(const crypto::key_derivation& derivation,
const std::size_t i,
const crypto::secret_key& sec_key,
const crypto::public_key& pub_key,
crypto::key_image& key_img)
{
cryptonote::keypair in_ephemeral;
if (!crypto::derive_public_key(derivation, i,
pub_key,
in_ephemeral.pub))
{
cerr << "Error generating publick key " << pub_key << endl;
return false;
}
try
{
crypto::derive_secret_key(derivation, i,
sec_key,
in_ephemeral.sec);
}
catch(const std::exception& e)
{
cerr << "Error generate secret image: " << e.what() << endl;
return false;
}
try
{
crypto::generate_key_image(in_ephemeral.pub,
in_ephemeral.sec,
key_img);
}
catch(const std::exception& e)
{
cerr << "Error generate key image: " << e.what() << endl;
return false;
}
return true;
}
array<uint64_t, 4>
summary_of_in_out_rct(
const transaction& tx,
vector<pair<txout_to_key, uint64_t>>& output_pub_keys,
vector<txin_to_key>& input_key_imgs)
{
uint64_t xmr_outputs {0};
uint64_t xmr_inputs {0};
uint64_t mixin_no {0};
uint64_t num_nonrct_inputs {0};
for (const tx_out& txout: tx.vout)
{
if (txout.target.type() != typeid(txout_to_key))
{
// push empty pair.
output_pub_keys.push_back(pair<txout_to_key, uint64_t>{});
continue;
}
// get tx input key
const txout_to_key& txout_key
= boost::get<cryptonote::txout_to_key>(txout.target);
output_pub_keys.push_back(make_pair(txout_key, txout.amount));
xmr_outputs += txout.amount;
}
size_t input_no = tx.vin.size();
for (size_t i = 0; i < input_no; ++i)
{
if(tx.vin[i].type() != typeid(cryptonote::txin_to_key))
{
continue;
}
// get tx input key
const cryptonote::txin_to_key& tx_in_to_key
= boost::get<cryptonote::txin_to_key>(tx.vin[i]);
xmr_inputs += tx_in_to_key.amount;
if (tx_in_to_key.amount != 0)
{
++num_nonrct_inputs;
}
if (mixin_no == 0)
{
mixin_no = tx_in_to_key.key_offsets.size();
}
input_key_imgs.push_back(tx_in_to_key);
} // for (size_t i = 0; i < input_no; ++i)
return {xmr_outputs, xmr_inputs, mixin_no, num_nonrct_inputs};
};
// this version for mempool txs from json
array<uint64_t, 6>
summary_of_in_out_rct(const json& _json)
{
uint64_t xmr_outputs {0};
uint64_t xmr_inputs {0};
uint64_t no_outputs {0};
uint64_t no_inputs {0};
uint64_t mixin_no {0};
uint64_t num_nonrct_inputs {0};
for (const json& vout: _json["vout"])
{
xmr_outputs += vout["amount"].get<uint64_t>();
}
no_outputs = _json["vout"].size();
for (const json& vin: _json["vin"])
{
uint64_t amount = vin["key"]["amount"].get<uint64_t>();
xmr_inputs += amount;
if (amount != 0)
++num_nonrct_inputs;
}
no_inputs = _json["vin"].size();
mixin_no = _json["vin"].at(0)["key"]["key_offsets"].size() - 1;
return {xmr_outputs, xmr_inputs, no_outputs, no_inputs, mixin_no, num_nonrct_inputs};
};
uint64_t
sum_money_in_outputs(const transaction& tx)
{
uint64_t sum_xmr {0};
for (const tx_out& txout: tx.vout)
{
sum_xmr += txout.amount;
}
return sum_xmr;
}
pair<uint64_t, uint64_t>
sum_money_in_outputs(const string& json_str)
{
pair<uint64_t, uint64_t> sum_xmr {0, 0};
json j;
try
{
j = json::parse( json_str);
}
catch (std::invalid_argument& e)
{
cerr << "sum_money_in_outputs: " << e.what() << endl;
return sum_xmr;
}
for (json& vout: j["vout"])
{
sum_xmr.first += vout["amount"].get<uint64_t>();
++sum_xmr.second;
}
return sum_xmr;
};
uint64_t
sum_money_in_inputs(const transaction& tx)
{
uint64_t sum_xmr {0};
size_t input_no = tx.vin.size();
for (size_t i = 0; i < input_no; ++i)
{
if(tx.vin[i].type() != typeid(cryptonote::txin_to_key))
{
continue;
}
// get tx input key
const cryptonote::txin_to_key& tx_in_to_key
= boost::get<cryptonote::txin_to_key>(tx.vin[i]);
sum_xmr += tx_in_to_key.amount;
}
return sum_xmr;
}
pair<uint64_t, uint64_t>
sum_money_in_inputs(const string& json_str)
{
pair<uint64_t, uint64_t> sum_xmr {0, 0};
json j;
try
{
j = json::parse( json_str);
}
catch (std::invalid_argument& e)
{
cerr << "sum_money_in_outputs: " << e.what() << endl;
return sum_xmr;
}
for (json& vin: j["vin"])
{
sum_xmr.first += vin["key"]["amount"].get<uint64_t>();
++sum_xmr.second;
}
return sum_xmr;
};
array<uint64_t, 2>
sum_money_in_tx(const transaction& tx)
{
array<uint64_t, 2> sum_xmr;
sum_xmr[0] = sum_money_in_inputs(tx);
sum_xmr[1] = sum_money_in_outputs(tx);
return sum_xmr;
};
array<uint64_t, 2>
sum_money_in_txs(const vector<transaction>& txs)
{
array<uint64_t, 2> sum_xmr {0,0};
for (const transaction& tx: txs)
{
sum_xmr[0] += sum_money_in_inputs(tx);
sum_xmr[1] += sum_money_in_outputs(tx);
}
return sum_xmr;
};
uint64_t
sum_fees_in_txs(const vector<transaction>& txs)
{
uint64_t fees_sum {0};
for (const transaction& tx: txs)
{
fees_sum += get_tx_fee(tx);
}
return fees_sum;
}
vector<pair<txout_to_key, uint64_t>>
get_ouputs(const transaction& tx)
{
vector<pair<txout_to_key, uint64_t>> outputs;
for (const tx_out& txout: tx.vout)
{
if (txout.target.type() != typeid(txout_to_key))
{
continue;
}
// get tx input key
const txout_to_key& txout_key
= boost::get<cryptonote::txout_to_key>(txout.target);
outputs.push_back(make_pair(txout_key, txout.amount));
}
return outputs;
};
vector<tuple<txout_to_key, uint64_t, uint64_t>>
get_ouputs_tuple(const transaction& tx)
{
vector<tuple<txout_to_key, uint64_t, uint64_t>> outputs;
for (uint64_t n = 0; n < tx.vout.size(); ++n)
{
if (tx.vout[n].target.type() != typeid(txout_to_key))
{
continue;
}
// get tx input key
const txout_to_key& txout_key
= boost::get<cryptonote::txout_to_key>(tx.vout[n].target);
outputs.push_back(make_tuple(txout_key, tx.vout[n].amount, n));
}
return outputs;
};
uint64_t
get_mixin_no(const transaction& tx)
{
uint64_t mixin_no {0};
size_t input_no = tx.vin.size();
for (size_t i = 0; i < input_no; ++i)
{
if(tx.vin[i].type() != typeid(cryptonote::txin_to_key))
{
continue;
}
// get tx input key
const txin_to_key& tx_in_to_key
= boost::get<cryptonote::txin_to_key>(tx.vin[i]);
mixin_no = tx_in_to_key.key_offsets.size();
// look for first mixin number.
// all inputs in a single transaction have same number
if (mixin_no > 0)
{
break;
}
}
return mixin_no;
}
vector<uint64_t>
get_mixin_no(const string& json_str)
{
vector<uint64_t> mixin_no;
json j;
try
{
j = json::parse(json_str);
mixin_no.push_back(j["vin"].at(0)["key"]["key_offsets"].size());
}
catch (std::invalid_argument& e)
{
cerr << "get_mixin_no: " << e.what() << endl;
return mixin_no;
}
return mixin_no;
}
vector<uint64_t>
get_mixin_no_in_txs(const vector<transaction>& txs)
{
vector<uint64_t> mixin_no;
for (const transaction& tx: txs)
{
mixin_no.push_back(get_mixin_no(tx));
}
return mixin_no;
}
vector<txin_to_key>
get_key_images(const transaction& tx)
{
vector<txin_to_key> key_images;
size_t input_no = tx.vin.size();
for (size_t i = 0; i < input_no; ++i)
{
if(tx.vin[i].type() != typeid(txin_to_key))
{
continue;
}
// get tx input key
const txin_to_key& tx_in_to_key
= boost::get<cryptonote::txin_to_key>(tx.vin[i]);
key_images.push_back(tx_in_to_key);
}
return key_images;
}
bool
get_payment_id(const vector<uint8_t>& extra,
crypto::hash& payment_id,
crypto::hash8& payment_id8)
{
payment_id = null_hash;
payment_id8 = null_hash8;
std::vector<tx_extra_field> tx_extra_fields;
if(!parse_tx_extra(extra, tx_extra_fields))
{
return false;
}
tx_extra_nonce extra_nonce;
if (find_tx_extra_field_by_type(tx_extra_fields, extra_nonce))
{
// first check for encrypted id and then for normal one
if(get_encrypted_payment_id_from_tx_extra_nonce(extra_nonce.nonce, payment_id8))
{
return true;
}
else if (get_payment_id_from_tx_extra_nonce(extra_nonce.nonce, payment_id))
{
return true;
}
}
return false;
}
// just a copy from bool
// device_default::encrypt_payment_id(crypto::hash8 &payment_id, const crypto::public_key &public_key, const crypto::secret_key &secret_key)
bool
encrypt_payment_id(crypto::hash8 &payment_id,
const crypto::public_key &public_key,
const crypto::secret_key &secret_key)
{
#define ENCRYPTED_PAYMENT_ID_TAIL 0x8d
crypto::key_derivation derivation;
crypto::hash hash;
char data[33]; /* A hash, and an extra byte */
if (!generate_key_derivation(public_key, secret_key, derivation))
return false;
memcpy(data, &derivation, 32);
data[32] = ENCRYPTED_PAYMENT_ID_TAIL;
cn_fast_hash(data, 33, hash);
for (size_t b = 0; b < 8; ++b)
payment_id.data[b] ^= hash.data[b];
return true;
}
array<size_t, 5>
timestamp_difference(uint64_t t1, uint64_t t2)
{
uint64_t timestamp_diff = t1 - t2;
// calculate difference of timestamps from current block to the mixin one
if (t2 > t1)
{
timestamp_diff = t2 - t1;
}
uint64_t time_diff_years = timestamp_diff / 31536000;
timestamp_diff -= time_diff_years * 31536000;
uint64_t time_diff_days = timestamp_diff / 86400;
timestamp_diff -= time_diff_days * 86400;
uint64_t time_diff_hours = timestamp_diff / 3600;
timestamp_diff -= time_diff_hours * 3600;
uint64_t time_diff_minutes = timestamp_diff / 60;
timestamp_diff -= time_diff_minutes * 60;
uint64_t time_diff_seconds = timestamp_diff ;
return array<size_t, 5> {time_diff_years, time_diff_days,
time_diff_hours, time_diff_minutes,
time_diff_seconds};
};
string
read(string filename)
{
if (!bf::exists(bf::path(filename)))
{
cerr << "File does not exist: " << filename << endl;
return string();
}
std::ifstream t(filename);
return string(std::istreambuf_iterator<char>(t),
std::istreambuf_iterator<char>());
}
pair<string, double>
timestamps_time_scale(const vector<uint64_t>& timestamps,
uint64_t timeN,
uint64_t resolution,
uint64_t time0)
{
string empty_time = string(resolution, '_');
size_t time_axis_length = empty_time.size();
uint64_t interval_length = timeN-time0;
double scale = double(interval_length) / double(time_axis_length);
for (const auto& timestamp: timestamps)
{
if (timestamp < time0 || timestamp > timeN)
{
cout << "Out of range" << endl;
continue;
}
uint64_t timestamp_place = double(timestamp-time0)
/ double(interval_length)*(time_axis_length - 1);
empty_time[timestamp_place + 1] = '*';
}
return make_pair(empty_time, scale);
}
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)
{
crypto::key_derivation derivation;
bool r = crypto::generate_key_derivation(pub, sec, derivation);
if (!r)
{
cerr <<"Failed to generate key derivation to decode rct output " << i << endl;
return false;
}
return decode_ringct(rv, derivation, i, mask, amount);
}
bool
decode_ringct(rct::rctSig const& rv,
crypto::key_derivation const& derivation,
unsigned int i,
rct::key& mask,
uint64_t& amount)
{
try
{
crypto::secret_key scalar1;
crypto::derivation_to_scalar(derivation, i, scalar1);
switch (rv.type)
{
case rct::RCTTypeSimple:
case rct::RCTTypeBulletproof:
amount = rct::decodeRctSimple(rv,
rct::sk2rct(scalar1),
i,
mask,
hw::get_device("default"));
break;
case rct::RCTTypeFull:
amount = rct::decodeRct(rv,
rct::sk2rct(scalar1),
i,
mask,
hw::get_device("default"));
break;
default:
cerr << "Unsupported rct type: " << rv.type << '\n';
return false;
}
}
catch (...)
{
cerr << "Failed to decode input " << i << '\n';
return false;
}
return true;
}
bool
url_decode(const std::string& in, std::string& out)
{
out.clear();
out.reserve(in.size());
for (std::size_t i = 0; i < in.size(); ++i)
{
if (in[i] == '%')
{
if (i + 3 <= in.size())
{
int value = 0;
std::istringstream is(in.substr(i + 1, 2));
if (is >> std::hex >> value)
{
out += static_cast<char>(value);
i += 2;
}
else
{
return false;
}
}
else
{
return false;
}
}
else if (in[i] == '+')
{
out += ' ';
}
else
{
out += in[i];
}
}
return true;
}
map<std::string, std::string>
parse_crow_post_data(const string& req_body)
{
map<std::string, std::string> body;
vector<string> vec;
string tmp;
bool result = url_decode(req_body, tmp);
if (result)
{
boost::algorithm::split(vec, tmp, [](char x) {return x == '&'; });
for(auto &it : vec)
{
auto pos = it.find("=");
if (pos != string::npos)
{
body[it.substr(0, pos)] = it.substr(pos + 1);
}
else
{
break;
}
}
}
return body;
}
//string
//xmr_amount_to_str(const uint64_t& xmr_amount, string format)
//{
//return fmt::format(format, XMR_AMOUNT(xmr_amount));
//}
/**
* Check if given output (specified by output_index)
* belongs is ours based
* on our private view key and public spend key
*/
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)
{
// public transaction key is combined with our viewkey
// to create, so called, derived key.
key_derivation derivation;
if (!generate_key_derivation(pub_tx_key, private_view_key, derivation))
{
cerr << "Cant get dervied key for: " << "\n"
<< "pub_tx_key: " << pub_tx_key << " and "
<< "prv_view_key" << private_view_key << endl;
return false;
}
// get the tx output public key
// that normally would be generated for us,
// if someone had sent us some xmr.
public_key pubkey;
derive_public_key(derivation,
output_index,
public_spend_key,
pubkey);
//cout << "\n" << tx.vout.size() << " " << output_index << endl;
// get tx output public key
const txout_to_key tx_out_to_key
= boost::get<txout_to_key>(tx.vout[output_index].target);
if (tx_out_to_key.key == pubkey)
{
return true;
}
return false;
}
bool
make_tx_from_json(const string& json_str, transaction& tx)
{
json j;
try
{
j = json::parse(json_str);
}
catch (std::invalid_argument& e)
{
cerr << "make_tx_from_json: cant parse json string: " << e.what() << endl;
return false;
}
// get version and unlock time from json
tx.version = j["version"].get<size_t>();
tx.unlock_time = j["unlock_time"].get<uint64_t>();
// next get extra data
for (json& extra_val: j["extra"])
tx.extra.push_back(extra_val.get<uint8_t>());
// now populate output data from json
vector<tx_out>& tx_outputs = tx.vout;
for (json& vo: j["vout"])
{
uint64_t amount = vo["amount"].get<uint64_t>();
public_key out_pub_key;
if (!epee::string_tools::hex_to_pod(vo["target"]["key"], out_pub_key))
{
cerr << "Faild to parse public_key of an output from json" << endl;
return false;
}
txout_target_v target {txout_to_key {out_pub_key}};
tx_outputs.push_back(tx_out {amount, target});
}
// now populate input data from json
vector<txin_v>& tx_inputs = tx.vin;
for (json& vi: j["vin"])
{
uint64_t amount = vi["key"]["amount"].get<uint64_t>();
key_image in_key_image;
if (!epee::string_tools::hex_to_pod(vi["key"]["k_image"], in_key_image))
{
cerr << "Faild to parse key_image of an input from json" << endl;
return false;
}
vector<uint64_t> key_offsets;
for (json& ko: vi["key"]["key_offsets"])
{
key_offsets.push_back(ko.get<uint64_t>());
}
txin_v _txin_v {txin_to_key {amount, key_offsets, in_key_image}};
tx_inputs.push_back(_txin_v);
}
// add ring signatures field
if (j.find("signatures") != j.end())
{
vector<vector<signature>>& signatures = tx.signatures;
for (json& sigs: j["signatures"])
{
string concatanted_sig = sigs;
vector<signature> sig_split;
auto split_sig = [&](string::iterator &b, string::iterator &e)
{
signature a_sig;
if (!epee::string_tools::hex_to_pod(string(b, e), a_sig))
{
cerr << "Faild to parse signature from json" << endl;
return false;
}
sig_split.push_back(a_sig);
return true;
};
chunks(concatanted_sig.begin(), concatanted_sig.end(), 128, split_sig);
signatures.push_back(sig_split);
}
}
// now add rct_signatures from json to tx if exist
if (j.find("rct_signatures") != j.end())
{
rct::rctSig& rct_signatures = tx.rct_signatures;
if (j["rct_signatures"].find("pseudoOuts") != j["rct_signatures"].end())
{
rct::keyV& pseudoOuts = rct_signatures.pseudoOuts;
for (json& pOut: j["rct_signatures"]["pseudoOuts"])
{
rct::key pOut_key;
if (!epee::string_tools::hex_to_pod(pOut, pOut_key))
{
cerr << "Faild to parse pOut_key of pseudoOuts from json" << endl;
return false;
}
pseudoOuts.push_back(pOut_key);
}
}
vector<rct::ecdhTuple>& ecdhInfo = rct_signatures.ecdhInfo;
for (json& ecdhI: j["rct_signatures"]["ecdhInfo"])
{
rct::ecdhTuple a_tuple;
//cout << "ecdhI[\"amount\"]: " << ecdhI["amount"] << endl;
if (!epee::string_tools::hex_to_pod(ecdhI["amount"], a_tuple.amount))
{
cerr << "Faild to parse ecdhInfo of an amount from json" << endl;
return false;
}
//cout << epee::string_tools::pod_to_hex(a_tuple.amount) << endl;
if (!epee::string_tools::hex_to_pod(ecdhI["mask"], a_tuple.mask))
{
cerr << "Faild to parse ecdhInfo of an mask from json" << endl;
return false;
}
ecdhInfo.push_back(a_tuple);
}
vector<rct::ctkey>& outPk = rct_signatures.outPk;
for (json& pk: j["rct_signatures"]["outPk"])
{
outPk.push_back(rct::ctkey {rct::zero(), rct::zero()});
rct::key& mask = outPk.back().mask;
if (!epee::string_tools::hex_to_pod(pk, mask))
{
cerr << "Faild to parse rct::key of an outPk from json" << endl;
return false;
}
// cout << "dest: " << epee::string_tools::pod_to_hex(outPk.back().mask) << endl;
}
rct_signatures.txnFee = j["rct_signatures"]["txnFee"].get<uint64_t>();
rct_signatures.type = j["rct_signatures"]["type"].get<uint8_t>();
} // if (j.find("rct_signatures") != j.end())
if (j.find("rctsig_prunable") != j.end())
{
rct::rctSigPrunable& rctsig_prunable = tx.rct_signatures.p;
vector<rct::rangeSig>& range_sigs = rctsig_prunable.rangeSigs;
for (json& range_s: j["rctsig_prunable"]["rangeSigs"])
{
rct::boroSig asig;
if (!epee::string_tools::hex_to_pod(range_s["asig"], asig))
{
cerr << "Faild to parse asig of an asnlSig from json" << endl;
return false;
}
struct {
rct::key64 Ci;
} key64_contained;
if (!epee::string_tools::hex_to_pod(range_s["Ci"], key64_contained))
{
cerr << "Faild to parse Ci of an asnlSig from json" << endl;
return false;
}
range_sigs.push_back(rct::rangeSig {});
rct::rangeSig& last_range_sig = range_sigs.back();
last_range_sig.asig = asig;
memcpy(&(last_range_sig.Ci), &(key64_contained.Ci), sizeof(rct::key64));
}
vector<rct::mgSig>& mg_sigs = rctsig_prunable.MGs;
for (json& a_mgs: j["rctsig_prunable"]["MGs"])
{
rct::mgSig new_mg_sig;
vector<rct::keyV>& ss = new_mg_sig.ss;
for (json& ss_j: a_mgs["ss"])
{
rct::key a_key1;
if (!epee::string_tools::hex_to_pod(ss_j[0], a_key1))
{
cerr << "Faild to parse ss a_key1 of an MGs from json" << endl;
return false;
}
rct::key a_key2;
if (!epee::string_tools::hex_to_pod(ss_j[1], a_key2))
{
cerr << "Faild to parse ss a_key2 of an MGs from json" << endl;
return false;
}
ss.push_back(vector<rct::key>{a_key1, a_key2});
}
json& cc_j = a_mgs["cc"];
if (!epee::string_tools::hex_to_pod(cc_j, new_mg_sig.cc))
{
cerr << "Faild to parse cc an MGs from json" << endl;
return false;
}
mg_sigs.push_back(new_mg_sig);
}
} // j.find("rctsig_prunable") != j.end()
//cout << j.dump(4) << endl;
//cout << "From reconstructed tx: " << obj_to_json_str(tx) << endl;
return true;
}
string
get_human_readable_timestamp(uint64_t ts)
{
char buffer[64];
if (ts < 1234567890)
return "<unknown>";
time_t tt = ts;
struct tm tm;
gmtime_r(&tt, &tm);
strftime(buffer, sizeof(buffer), "%Y-%m-%d %I:%M:%S ", &tm);
return std::string(buffer);
}
string
make_hash(const string& in_str)
{
crypto::hash vk_hash;
crypto::cn_fast_hash(in_str.c_str(), in_str.length(), vk_hash);
return pod_to_hex(vk_hash);
}
bool
hex_to_tx_blob(string const& tx_hex, string& tx_blob)
{
return epee::string_tools::parse_hexstr_to_binbuff(tx_hex, tx_blob);
}
bool
hex_to_complete_block(string const& cblk_str,
block_complete_entry& cblk)
{
cryptonote::blobdata cblk_blob;
if (!epee::string_tools::parse_hexstr_to_binbuff(
cblk_str, cblk_blob))
return false;
if (!epee::serialization::load_t_from_binary(cblk, cblk_blob))
return false;
return true;
}
bool
hex_to_complete_block(vector<string> const& cblks_str,
vector<block_complete_entry>& cblks)
{
for (auto const& cblk_str: cblks_str)
{
block_complete_entry cblk;
if (!hex_to_complete_block(cblk_str, cblk))
return false;
cblks.push_back(cblk);
}
return true;
}
bool
blocks_and_txs_from_complete_blocks(
vector<block_complete_entry> const& cblks,
vector<block>& blocks,
vector<transaction>& transactions)
{
for (auto const& cblk: cblks)
{
block blk;
if (!parse_and_validate_block_from_blob(cblk.block, blk))
return false;
blocks.push_back(blk);
// first is miner_tx
transactions.push_back(blk.miner_tx);
vector<transaction> txs;
for (auto const& tx_blob: cblk.txs)
{
transaction tx;
if (!parse_and_validate_tx_from_blob(tx_blob.blob, tx))
return false;
txs.push_back(tx);
}
// now normal txs
transactions.insert(transactions.end(),
txs.begin(), txs.end());
}
return true;
}
bool
output_data_from_hex(
string const& out_data_hex,
std::map<vector<uint64_t>,
vector<cryptonote::output_data_t>>&
outputs_data_map)
{
// key: vector of absolute_offsets and associated amount (last value),
// value: vector of output_info_of_mixins as string
std::map<vector<uint64_t>, vector<string>> outputs_data_map_str;
try
{
string out_data_blob;
if (!epee::string_tools::parse_hexstr_to_binbuff(
out_data_hex, out_data_blob))
return false;
std::stringstream iss;
iss << out_data_blob;
boost::archive::portable_binary_iarchive archive(iss);
archive >> outputs_data_map_str;
for (auto const& kv: outputs_data_map_str)
{
auto const& absolute_offsets = kv.first;
for (string const& s: kv.second)
{
cryptonote::output_data_t out_data;
if (!hex_to_pod(s, out_data))
{
cerr << "hex_to_pod faild in output_data_from_hex\n";
return false;
}
//cout << "\n absolute_offsets (last value is amount): ";
//for (auto& v: absolute_offsets)
// cout << v << ", ";
//cout << '\n';
outputs_data_map[absolute_offsets].push_back(out_data);
}
}
}
catch (...)
{
cerr << "deserialization faild in output_data_from_hex\n";
return false;
}
return true;
}
bool
populate_known_outputs_from_csv(
string const& csv_file,
std::unordered_map<public_key, uint64_t>& known_outputs,
bool skip_first_line)
{
std::ifstream input(csv_file);
if (!input.is_open())
{
cerr << "Cant open: " << csv_file << '\n';
return false;
}
string line;
while(getline(input, line))
{
if (skip_first_line)
{
skip_first_line = false;
continue;
}
vector<string> vec;
boost::algorithm::split(vec, line, boost::is_any_of(","));
uint64_t amount;
string out_public_key;
try
{
amount = boost::lexical_cast<uint64_t>(vec.at(7));
out_public_key = vec.at(8);
}
catch (std::exception const& e)
{
cerr << e.what() << endl;
return false;
}
public_key out_pk;
if (!hex_to_pod(out_public_key, out_pk))
{
cerr << "hex_to_pod failed in output_data_from_hex\n";
return false;
}
auto it = known_outputs.find(out_pk);
if (it != known_outputs.end())
{
cerr << "csv has duplicate out_public_key\n";
return false;
}
known_outputs.insert({out_pk, amount});
}
return true;
}
}