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reconstruction of ringct from json completed

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master
moneroexamples 8 years ago
parent 615c087efb
commit 135558f417
3 changed files with 79 additions and 96 deletions
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6
README.md
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@ -198,10 +198,8 @@ int main(int ac, const char* av[]) {
##### Monero headers and libraries setup
The Onion Explorer uses Monero C++ libraries and headers. Also some functionality
in the Explorer for mempool is achieved through [patching](https://github.com/moneroexamples/compile-monero-09-on-ubuntu-16-04/blob/master/res/tx_blob_to_tx_info.patch)
the Monero deamon.
Instructions how to download Monero source files, apply a patch, compile Monero,
The Onion Explorer uses Monero C++ libraries and headers.
Instructions how to download source files and compile Monero,
setup header and library files are presented here:
- https://github.com/moneroexamples/compile-monero-09-on-ubuntu-16-04 (Ubuntu 16.04)

13
src/page.h
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@ -478,18 +478,6 @@ public:
//get current server timestamp
server_timestamp = std::time(nullptr);
// // @TODO need to make this tx from _tx_info.tx_json
// transaction tx;
//
// if (!xmreg::make_tx_from_json(string{}, tx))
// {
// cerr << "Cant make tx from _tx_info.tx_json" << endl;
// //return string {"Cant make tx from _tx_info.tx_json"};
// }
// number of last blocks to show
uint64_t no_of_last_blocks {25 + 1};
@ -4039,7 +4027,6 @@ private:
if (hex_to_pod(_tx_info.id_hash, mem_tx_hash))
{
// @TODO need to make this tx from _tx_info.tx_json
transaction tx;
if (!xmreg::make_tx_from_json(_tx_info.tx_json, tx))

154
src/tools.cpp
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@ -1028,59 +1028,8 @@ get_real_output_for_key_image(const key_image& ki,
bool
make_tx_from_json(const string& json_str, transaction& tx)
{
json j;
cout << json_str << endl;
const char * raw = R"V0G0N(
{
"version": 1,
"unlock_time": 0,
"vin": [ {
"key": {
"amount": 500000000000,
"key_offsets": [ 970946, 74679, 42349
],
"k_image": "a3569b74ac6072a09ff7aa87d6a71f4960b736166fe991ffd9ae6e023b8fccaa"
}
}, {
"key": {
"amount": 6000000000000,
"key_offsets": [ 76729, 115575, 6350
],
"k_image": "15e6094d135fe034eacff7d905da915fabbeddb055cd4f2f56628ab74c149ba7"
}
}
],
"vout": [ {
"amount": 90000000000,
"target": {
"key": "017ec135fd5a83ef71e1733c6b8514b90b6af3a39bf048298a4cadcb527cb44d"
}
}, {
"amount": 400000000000,
"target": {
"key": "f54dd59afbff69d0f963dba339c036c61149431ea4767b8f48bd687cb95ce863"
}
}, {
"amount": 1000000000000,
"target": {
"key": "983eb1aef254a90cf1c053ca67f355c7d232b792219d4ab4e25c2e8c839e0daf"
}
}, {
"amount": 5000000000000,
"target": {
"key": "b5d6f08ae20031ad2e904795b16c5336325a437293d9c4ec8d282d2f856245f3"
}
}
],
"extra": [ 2, 33, 0, 16, 251, 80, 43, 162, 245, 74, 116, 191, 231, 90, 127, 157, 163, 123, 50, 55, 169, 21, 169, 213, 159, 79, 30, 148, 88, 38, 122, 80, 254, 174, 155, 1, 3, 187, 28, 103, 133, 53, 170, 134, 103, 235, 120, 47, 87, 205, 202, 40, 30, 129, 27, 27, 192, 122, 192, 209, 190, 161, 249, 75, 147, 29, 42, 15
],
"signatures": [ "023714291f36e2ec9985417f0792425ce192434bcfcb4c600806f94ff2215007299d16a105f5741e2ab75e4592b8b8f3f604a114ea8e9a6edc8360fbe07da80c3a108fa6a5861c684f20aecbe1c6bde30eae22e2f69aeff2ed605c8ac9e3a004e181eec999af9e9ec7ba4379dbe78f0c7ee41d77276c0472b071b33df83419065c5cd2ffb7ed4bfacbd67ec3aa304e3f59a00d310a455db1718d14c789adc8062c97c75bb421e1579e9df1ddadfd59a06fccd01c054cf39b1e93f8b43e4f5405", "4984136e387023b499fbff72a1b88bac64e3dcb54a0213ce2deb412de2781d0f41a0f0160dd6c07b98d6d63adc91b672cc3f2ff6f447d48bea09d54b87ab440310459fbb9a7cc59a2e4ac80d4bb41c9ea2500515a7ceaf6b1e23849965395501af1761413dc4d79eaba190ca72c00e0bdc3737502fb46bf705f714741e6434070a82684d5f441de2991989aff2c7f806ad4adaf93fb649a3d2715760d1ea870fd2a402b1678dafa172d2830e713ce60e776cede47367185fa00d78910d21f00d"]
}
)V0G0N";
try
{
j = json::parse(json_str);
@ -1216,17 +1165,17 @@ make_tx_from_json(const string& json_str, transaction& tx)
for (json& pk: j["rct_signatures"]["outPk"])
{
rct::key a_key;
outPk.push_back(rct::ctkey {rct::zero(), rct::zero()});
rct::key& mask = outPk.back().mask;
if (!epee::string_tools::hex_to_pod(pk, a_key))
if (!epee::string_tools::hex_to_pod(pk, mask))
{
cerr << "Faild to parse rct::key of an outPk from json" << endl;
return false;
}
// dont have second value, i.e. mask, in the json
// so I just put whatever, same key for exmaple
outPk.push_back(rct::ctkey{a_key, a_key});
cout << "dest: " << epee::string_tools::pod_to_hex(outPk.back().mask) << endl;
}
rct_signatures.txnFee = j["rct_signatures"]["txnFee"].get<uint64_t>();
@ -1241,33 +1190,82 @@ make_tx_from_json(const string& json_str, transaction& tx)
vector<rct::rangeSig>& range_sigs = rctsig_prunable.rangeSigs;
// for (json& range_s: j["rctsig_prunable"]["rangeSigs"])
// {
// rct::asnlSig asig;
//
// if (!epee::string_tools::hex_to_pod<rct::asnlSig>(range_s["asig"], asig))
// {
// cerr << "Faild to parse asig of an asnlSig from json" << endl;
// return false;
// }
//
// rct::key64 Ci;
//
// if (!epee::string_tools::hex_to_pod<rct::key64>(range_s["Ci"], Ci))
// {
// cerr << "Faild to parse Ci of an asnlSig from json" << endl;
// return false;
// }
//
// range_sigs.emplace_back(asig, Ci);
// }
for (json& range_s: j["rctsig_prunable"]["rangeSigs"])
{
rct::asnlSig 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 << j.dump(4) << endl;
cout << "From reconstructed tx: " << obj_to_json_str(tx) << endl;
//cout << "From reconstructed tx: " << obj_to_json_str(tx) << endl;
return true;
}

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