onion-wownero-blockchain-ex.../src/tools.cpp

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//
// Created by marcin on 5/11/15.
//
#include "tools.h"
namespace xmreg
{
/**
* Parse key string, e.g., a viewkey in a string
* into crypto::secret_key or crypto::public_key
* depending on the template argument.
*/
template <typename T>
bool
parse_str_secret_key(const string& key_str, T& secret_key)
{
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// hash and keys have same structure, so to parse string of
// a key, e.g., a view key, we can first parse it into the hash
// object using parse_hash256 function, and then copy the reslting
// hash data into secret key.
crypto::hash hash_;
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if(!parse_hash256(key_str, hash_))
{
cerr << "Cant parse a key (e.g. viewkey): " << key_str << endl;
return false;
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}
// crypto::hash and crypto::secret_key have basicly same
// structure. They both keep they key/hash as c-style char array
// of fixed size. Thus we can just copy data from hash
// to key
copy(begin(hash_.data), end(hash_.data), secret_key.data);
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return true;
}
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// explicit instantiations of get template function
template bool parse_str_secret_key<crypto::secret_key>(const string& key_str, crypto::secret_key& secret_key);
template bool parse_str_secret_key<crypto::public_key>(const string& key_str, crypto::public_key& secret_key);
template bool parse_str_secret_key<crypto::hash>(const string& key_str, crypto::hash& secret_key);
/**
* 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);
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try
{
// get transaction with given hash
tx = core_storage.get_db().get_tx(tx_hash);
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}
catch (const TX_DNE& e)
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{
cerr << e.what() << endl;
return false;
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}
return true;
}
/**
* Parse monero address in a string form into
* cryptonote::account_public_address object
*/
bool
parse_str_address(const string& address_str,
account_public_address& address,
bool testnet)
{
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if (!get_account_address_from_str(address, testnet, address_str))
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{
cerr << "Error getting address: " << address_str << endl;
return false;
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}
return true;
}
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/**
* Return string representation of monero address
*/
string
print_address(const account_public_address& address, bool testnet)
{
return "<" + get_account_address_as_str(testnet, address) + ">";
}
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;
}
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/**
* Remove trailinig path separator.
*/
string
remove_trailing_path_separator(const string& in_path)
{
string new_string = in_path;
if (!new_string.empty() && is_separator(new_string[new_string.size() - 1]))
new_string.erase(new_string.size() - 1);
return new_string;
}
bf::path
remove_trailing_path_separator(const bf::path& in_path)
{
string path_str = in_path.native();
return bf::path(remove_trailing_path_separator(path_str));
}
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string
timestamp_to_str(time_t timestamp, const char* format)
{
auto a_time_point = chrono::system_clock::from_time_t(timestamp);
try
{
auto utc = date::to_utc_time(chrono::system_clock::from_time_t(timestamp));
auto sys_time = date::to_sys_time(utc);
return date::format(format, date::floor<chrono::seconds>(sys_time));
}
catch (std::runtime_error& e)
{
cerr << "xmreg::timestamp_to_str: " << e.what() << endl;
cerr << "Seems cant convert to UTC timezone using date library. "
"So just use local timezone." <<endl;
return timestamp_to_str_local(timestamp, format);
}
}
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//string
//timestamp_to_str(time_t timestamp, const char* format)
//{
// return get_human_readable_timestamp(timestamp);
//}
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 account_public_address& addr)
{
os << get_account_address_as_str(false, addr);
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;
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}
try
{
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crypto::derive_secret_key(derivation, i,
sec_key,
in_ephemeral.sec);
}
catch(const std::exception& e)
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{
cerr << "Error generate secret image: " << e.what() << endl;
return false;
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}
try
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{
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;
}
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return true;
}
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string
get_default_lmdb_folder(bool testnet)
{
// default path to monero folder
// on linux this is /home/<username>/.bitmonero
string default_monero_dir = tools::get_default_data_dir();
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if (testnet)
default_monero_dir += "/testnet";
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// the default folder of the lmdb blockchain database
// is therefore as follows
return default_monero_dir + string("/lmdb");
}
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/*
* Ge blockchain exception from command line option
*
* If not given, provide default path
*/
bool
get_blockchain_path(const boost::optional<string>& bc_path,
bf::path& blockchain_path,
bool testnet)
{
// the default folder of the lmdb blockchain database
string default_lmdb_dir = xmreg::get_default_lmdb_folder(testnet);
blockchain_path = bc_path
? bf::path(*bc_path)
: bf::path(default_lmdb_dir);
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if (!bf::is_directory(blockchain_path))
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{
cerr << "Given path \"" << blockchain_path << "\" "
<< "is not a folder or does not exist" << " "
<< endl;
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return false;
}
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blockchain_path = xmreg::remove_trailing_path_separator(blockchain_path);
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return true;
}
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uint64_t
sum_money_in_outputs(const transaction& tx)
{
uint64_t sum_xmr {0};
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for (const tx_out& txout: tx.vout)
{
sum_xmr += txout.amount;
}
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return sum_xmr;
}
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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;
};
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uint64_t
sum_money_in_inputs(const transaction& tx)
{
uint64_t sum_xmr {0};
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size_t input_no = tx.vin.size();
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for (size_t i = 0; i < input_no; ++i)
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{
if(tx.vin[i].type() != typeid(cryptonote::txin_to_key))
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{
continue;
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}
// get tx input key
const cryptonote::txin_to_key& tx_in_to_key
= boost::get<cryptonote::txin_to_key>(tx.vin[i]);
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sum_xmr += tx_in_to_key.amount;
}
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return sum_xmr;
}
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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;
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}
for (json& vin: j["vin"])
{
sum_xmr.first += vin["key"]["amount"].get<uint64_t>();
++sum_xmr.second;
}
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return sum_xmr;
};
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array<uint64_t, 2>
sum_money_in_tx(const transaction& tx)
{
array<uint64_t, 2> sum_xmr;
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sum_xmr[0] = sum_money_in_inputs(tx);
sum_xmr[1] = sum_money_in_outputs(tx);
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return sum_xmr;
};
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array<uint64_t, 2>
sum_money_in_txs(const vector<transaction>& txs)
{
array<uint64_t, 2> sum_xmr {0,0};
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for (const transaction& tx: txs)
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{
sum_xmr[0] += sum_money_in_inputs(tx);
sum_xmr[1] += sum_money_in_outputs(tx);
}
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return sum_xmr;
};
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uint64_t
sum_fees_in_txs(const vector<transaction>& txs)
{
uint64_t fees_sum {0};
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for (const transaction& tx: txs)
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{
fees_sum += get_tx_fee(tx);
}
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return fees_sum;
}
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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))
{
// push empty pair.
outputs.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);
outputs.push_back(make_pair(txout_key, txout.amount));
}
return outputs;
};
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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)
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{
if (tx.vout[n].target.type() != typeid(txout_to_key))
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{
continue;
}
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// get tx input key
const txout_to_key& txout_key
= boost::get<cryptonote::txout_to_key>(tx.vout[n].target);
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outputs.push_back(make_tuple(txout_key, tx.vout[n].amount, n));
}
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return outputs;
};
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uint64_t
get_mixin_no(const transaction& tx)
{
uint64_t mixin_no {0};
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size_t input_no = tx.vin.size();
for (size_t i = 0; i < input_no; ++i)
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{
if(tx.vin[i].type() != typeid(cryptonote::txin_to_key))
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{
continue;
}
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// get tx input key
const txin_to_key& tx_in_to_key
= boost::get<cryptonote::txin_to_key>(tx.vin[i]);
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mixin_no = tx_in_to_key.key_offsets.size();
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// look for first mixin number.
// all inputs in a single transaction have same number
if (mixin_no > 0)
{
break;
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}
}
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return mixin_no;
}
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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;
}
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return mixin_no;
}
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vector<uint64_t>
get_mixin_no_in_txs(const vector<transaction>& txs)
{
vector<uint64_t> mixin_no;
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for (const transaction& tx: txs)
{
mixin_no.push_back(get_mixin_no(tx));
}
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return mixin_no;
}
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vector<txin_to_key>
get_key_images(const transaction& tx)
{
vector<txin_to_key> key_images;
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size_t input_no = tx.vin.size();
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for (size_t i = 0; i < input_no; ++i)
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{
if(tx.vin[i].type() != typeid(txin_to_key))
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{
continue;
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}
// get tx input key
const txin_to_key& tx_in_to_key
= boost::get<cryptonote::txin_to_key>(tx.vin[i]);
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key_images.push_back(tx_in_to_key);
}
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return key_images;
}
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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;
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std::vector<tx_extra_field> tx_extra_fields;
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if(!parse_tx_extra(extra, tx_extra_fields))
{
return false;
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}
tx_extra_nonce extra_nonce;
if (find_tx_extra_field_by_type(tx_extra_fields, extra_nonce))
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{
// first check for encrypted id and then for normal one
if(get_encrypted_payment_id_from_tx_extra_nonce(extra_nonce.nonce, payment_id8))
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{
return true;
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}
else if (get_payment_id_from_tx_extra_nonce(extra_nonce.nonce, payment_id))
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{
return true;
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}
}
return false;
}
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bool
get_payment_id(const transaction& tx,
crypto::hash& payment_id,
crypto::hash8& payment_id8)
{
return get_payment_id(tx.extra, payment_id, payment_id8);
}
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array<size_t, 5>
timestamp_difference(uint64_t t1, uint64_t t2)
{
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uint64_t timestamp_diff = t1 - t2;
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// calculate difference of timestamps from current block to the mixin one
if (t2 > t1)
{
timestamp_diff = t2 - t1;
}
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uint64_t time_diff_years = timestamp_diff / 31536000;
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timestamp_diff -= time_diff_years * 31536000;
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uint64_t time_diff_days = timestamp_diff / 86400;
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timestamp_diff -= time_diff_days * 86400;
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uint64_t time_diff_hours = timestamp_diff / 3600;
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timestamp_diff -= time_diff_hours * 3600;
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uint64_t time_diff_minutes = timestamp_diff / 60;
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timestamp_diff -= time_diff_minutes * 60;
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uint64_t time_diff_seconds = timestamp_diff ;
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return array<size_t, 5> {time_diff_years, time_diff_days,
time_diff_hours, time_diff_minutes,
time_diff_seconds};
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};
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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>());
}
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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, '_');
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size_t time_axis_length = empty_time.size();
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uint64_t interval_length = timeN-time0;
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double scale = double(interval_length) / double(time_axis_length);
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for (const auto& timestamp: timestamps)
{
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if (timestamp < time0 || timestamp > timeN)
{
cout << "Out of range" << endl;
continue;
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}
uint64_t timestamp_place = double(timestamp-time0)
/ double(interval_length)*(time_axis_length - 1);
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empty_time[timestamp_place + 1] = '*';
}
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return make_pair(empty_time, scale);
}
// useful reference to get epoch time in correct timezon
// http://www.boost.org/doc/libs/1_41_0/doc/html/date_time/examples.html#date_time.examples.seconds_since_epoch
time_t
ptime_to_time_t(const pt::ptime& in_ptime)
{
static pt::ptime epoch(gt::date(1970, 1, 1));
pt::time_duration::sec_type no_seconds = (in_ptime - epoch).total_seconds();
return time_t(no_seconds);
}
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;
}
crypto::secret_key scalar1;
crypto::derivation_to_scalar(derivation, i, scalar1);
try
{
switch (rv.type)
{
case rct::RCTTypeSimple:
amount = rct::decodeRctSimple(rv,
rct::sk2rct(scalar1),
i,
mask);
break;
case rct::RCTTypeFull:
amount = rct::decodeRct(rv,
rct::sk2rct(scalar1),
i,
mask);
break;
default:
cerr << "Unsupported rct type: " << rv.type << endl;
return false;
}
}
catch (const std::exception &e)
{
cerr << "Failed to decode input " << i << endl;
return false;
}
return true;
}
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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)
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{
if (in[i] == '%')
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{
if (i + 3 <= in.size())
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{
int value = 0;
std::istringstream is(in.substr(i + 1, 2));
if (is >> std::hex >> value)
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{
out += static_cast<char>(value);
i += 2;
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}
else
{
return false;
}
}
else
{
return false;
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}
}
else if (in[i] == '+')
{
out += ' ';
}
else
{
out += in[i];
}
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}
return true;
}
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map<std::string, std::string>
parse_crow_post_data(const string& req_body)
{
map<std::string, std::string> body;
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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)
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{
auto pos = it.find("=");
if (pos != string::npos)
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{
body[it.substr(0, pos)] = it.substr(pos + 1);
}
else
{
break;
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}
}
}
return body;
}
// from wallet2::decrypt
string
decrypt(const std::string &ciphertext,
const crypto::secret_key &skey,
bool authenticated)
{
const size_t prefix_size = sizeof(chacha8_iv)
+ (authenticated ? sizeof(crypto::signature) : 0);
if (ciphertext.size() < prefix_size)
{
cerr << "Unexpected ciphertext size" << endl;
return {};
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}
crypto::chacha8_key key;
crypto::generate_chacha8_key(&skey, sizeof(skey), key);
const crypto::chacha8_iv &iv = *(const crypto::chacha8_iv*)&ciphertext[0];
std::string plaintext;
plaintext.resize(ciphertext.size() - prefix_size);
if (authenticated)
{
crypto::hash hash;
crypto::cn_fast_hash(ciphertext.data(), ciphertext.size() - sizeof(signature), hash);
crypto::public_key pkey;
crypto::secret_key_to_public_key(skey, pkey);
const crypto::signature &signature =
*(const crypto::signature*)&ciphertext[ciphertext.size()
- sizeof(crypto::signature)];
if (!crypto::check_signature(hash, pkey, signature))
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{
cerr << "Failed to authenticate criphertext" << endl;
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return {};
}
}
crypto::chacha8(ciphertext.data() + sizeof(iv),
ciphertext.size() - prefix_size,
key, iv, &plaintext[0]);
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return plaintext;
}
// 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)
{
std::vector<tx_extra_field> tx_extra_fields;
if(!parse_tx_extra(tx.extra, tx_extra_fields))
{
// Extra may only be partially parsed, it's OK if tx_extra_fields contains public key
}
// Due to a previous bug, there might be more than one tx pubkey in extra, one being
// the result of a previously discarded signature.
// For speed, since scanning for outputs is a slow process, we check whether extra
// contains more than one pubkey. If not, the first one is returned. If yes, they're
// checked for whether they yield at least one output
tx_extra_pub_key pub_key_field;
if (!find_tx_extra_field_by_type(tx_extra_fields, pub_key_field, 0))
{
return null_pkey;
}
public_key tx_pub_key = pub_key_field.pub_key;
bool two_found = find_tx_extra_field_by_type(tx_extra_fields, pub_key_field, 1);
if (!two_found)
{
// easy case, just one found
return tx_pub_key;
}
else
{
// just return second one if there are two.
// this does not require private view key, as
// its not needed for my use case.
return pub_key_field.pub_key;
}
return null_pkey;
}
date::sys_seconds
parse(const std::string& str, string format)
{
std::istringstream in(str);
date::sys_seconds tp;
in >> date::parse(format, tp);
if (in.fail())
{
in.clear();
in.str(str);
in >> date::parse(format, tp);
}
return tp;
}
/**
* 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
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)
{
return false;
}
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bool
make_tx_from_json(const string& json_str, transaction& tx)
{
json j;
try
{
j = json::parse(json_str);
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}
catch (std::invalid_argument& e)
{
cerr << "make_tx_from_json: cant parse json string: " << e.what() << endl;
return false;
}
// cout << "\n\n j.dump()" << j.dump(4) << endl;
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// get version and unlock time from json
tx.version = j["version"].get<size_t>();
tx.unlock_time = j["unlock_time"].get<uint64_t>();
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// 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);
}
}
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// 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);
}
}
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vector<rct::ecdhTuple>& ecdhInfo = rct_signatures.ecdhInfo;
for (json& ecdhI: j["rct_signatures"]["ecdhInfo"])
{
rct::ecdhTuple a_tuple;
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//cout << "ecdhI[\"amount\"]: " << ecdhI["amount"] << endl;
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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()});
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rct::key& mask = outPk.back().mask;
if (!epee::string_tools::hex_to_pod(pk, mask))
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{
cerr << "Faild to parse rct::key of an outPk from json" << endl;
return false;
}
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// cout << "dest: " << epee::string_tools::pod_to_hex(outPk.back().mask) << endl;
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}
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;
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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);
}
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} // j.find("rctsig_prunable") != j.end()
//cout << "From reconstructed tx: " << obj_to_json_str(tx) << endl;
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return true;
}
string
make_printable(const string& in_s)
{
string output;
for (char c: in_s)
{
if (isprint(c))
{
output += c;
}
else
{
switch(c){
case '\000': output += "\\000";break;
case '\001': output += "\\001";break;
case '\002': output += "\\002";break;
case '\003': output += "\\003";break;
case '\004': output += "\\004";break;
case '\005': output += "\\005";break;
case '\006': output += "\\006";break;
case '\007': output += "\\007";break;
// there are more case but for now its ok
default:
stringstream ss;
ss << std::hex << (int)c;
output += "0x" + ss.str();
break;
}
}
}
return output;
}
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);
}
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}
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