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openmonero/src/YourMoneroRequests.cpp

823 lines
27 KiB

//
// Created by mwo on 8/01/17.
//
#define MYSQLPP_SSQLS_NO_STATICS 1
#include "YourMoneroRequests.h"
#include "ssqlses.h"
#include "OutputInputIdentification.h"
namespace xmreg
{
string
get_current_time(const char* format)
{
auto current_time = date::make_zoned(
date::current_zone(),
date::floor<chrono::seconds>(std::chrono::system_clock::now())
);
return date::format(format, current_time);
}
multimap<string, string>
make_headers(const multimap<string, string>& extra_headers)
{
multimap<string, string> headers {
{"Date", get_current_time()},
{"Access-Control-Allow-Origin", "http://127.0.0.1:81"},
{"access-control-allow-headers", "*, DNT,X-CustomHeader,Keep-Alive,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type,Set-Cookie"},
{"access-control-max-age", "86400, 1728000"},
{"access-control-allow-methods", "GET, POST, OPTIONS"},
{"access-control-allow-credentials", "true"},
{"Content-Type", "application/json"}
};
headers.insert(extra_headers.begin(), extra_headers.end());
return headers;
};
handel_::handel_(const fetch_func_t& callback):
request_callback {callback}
{}
void
handel_::operator()(const shared_ptr< Session > session)
{
const auto request = session->get_request( );
size_t content_length = request->get_header( "Content-Length", 0);
session->fetch(content_length, this->request_callback);
}
YourMoneroRequests::YourMoneroRequests(shared_ptr<MySqlAccounts> _acc):
xmr_accounts {_acc}
{}
void
YourMoneroRequests::login(const shared_ptr<Session> session, const Bytes & body)
{
json j_request = body_to_json(body);
// if (show_logs)
// print_json_log("login request: ", j_request);
string xmr_address = j_request["address"];
// a placeholder for exciting or new account data
XmrAccount acc;
uint64_t acc_id {0};
json j_response;
// select this account if its existing one
if (xmr_accounts->select(xmr_address, acc))
{
j_response = {{"new_address", false}};
}
else
{
// account does not exist, so create new one
// for this address
// we will save current blockchain height
// in mysql, so that we know from what block
// to start searching txs of this new acount
// make it 1 block lower than current, just in case.
// this variable will be our using to initialize
// `canned_block_height` in mysql Accounts table.
uint64_t current_blkchain_height = get_current_blockchain_height() - 1;
if ((acc_id = xmr_accounts->insert(xmr_address, current_blkchain_height)) != 0)
{
// select newly created account
if (xmr_accounts->select(acc_id, acc))
{
j_response = {{"new_address", true}};
}
}
}
acc.viewkey = j_request["view_key"];
// so we have an account now. Either existing or
// newly created. Thus, we can start a tread
// which will scan for transactions belonging to
// that account, using its address and view key.
// the thread will scan the blockchain for txs belonging
// to that account and updated mysql database whenever it
// will find something.
//
// The other client (i.e., a webbrowser) will query other functions to retrieve
// any belonging transactions in a loop. Thus the thread does not need
// to do anything except looking for tx and updating mysql
// with relative tx information
if (CurrentBlockchainStatus::start_tx_search_thread(acc))
{
cout << "Search thread started" << endl;
}
string response_body = j_response.dump();
auto response_headers = make_headers({{ "Content-Length", to_string(response_body.size())}});
session->close( OK, response_body, response_headers);
}
void
YourMoneroRequests::get_address_txs(const shared_ptr< Session > session, const Bytes & body)
{
json j_request = body_to_json(body);
// if (show_logs)
// print_json_log("get_address_txs request: ", j_request);
string xmr_address = j_request["address"];
// initialize json response
json j_response {
{ "total_received", "0"}, // taken from Accounts table
{ "scanned_height", 0}, // not used. it is here to match mymonero
{ "scanned_block_height", 0}, // taken from Accounts table
{ "start_height", 0}, // blockchain hieght when acc was created
{ "transaction_height", 0}, // not used. it is here to match mymonero
{ "blockchain_height", 0}, // current blockchain height
{ "transactions", json::array()}
};
// a placeholder for exciting or new account data
xmreg::XmrAccount acc;
// select this account if its existing one
if (xmr_accounts->select(xmr_address, acc)) {
uint64_t total_received{0};
j_response["total_received"] = total_received;
j_response["start_height"] = acc.start_height;
j_response["scanned_block_height"] = acc.scanned_block_height;
j_response["blockchain_height"] = CurrentBlockchainStatus::get_current_blockchain_height();
vector<XmrTransaction> txs;
if (xmr_accounts->select_txs_for_account_spendability_check(acc.id, txs))
{
json j_txs = json::array();
for (XmrTransaction tx: txs)
{
json j_tx = tx.to_json();
// mark that this is from blockchain.
// tx stored in mysql/mariadb are only from blockchain
// and never from mempool.
j_tx["mempool"] = false;
vector<XmrInput> inputs;
if (xmr_accounts->select_inputs_for_tx(tx.id, inputs))
{
json j_spent_outputs = json::array();
uint64_t total_spent {0};
for (XmrInput input: inputs)
{
XmrOutput out;
if (xmr_accounts->select_output_with_id(input.output_id, out))
{
total_spent += input.amount;
j_spent_outputs.push_back({
{"amount" , input.amount},
{"key_image" , input.key_image},
{"tx_pub_key" , out.tx_pub_key},
{"out_index" , out.out_index},
{"mixin" , out.mixin}});
}
}
j_tx["total_sent"] = total_spent;
j_tx["spent_outputs"] = j_spent_outputs;
} // if (xmr_accounts->select_inputs_for_tx(tx.id, inputs))
total_received += tx.total_received;
j_txs.push_back(j_tx);
} // for (XmrTransaction tx: txs)
j_response["total_received"] = total_received;
j_response["transactions"] = j_txs;
} // if (xmr_accounts->select_txs_for_account_spendability_check(acc.id, txs))
} // if (xmr_accounts->select(xmr_address, acc))
// append txs found in mempool to the json returned
json j_mempool_tx;
if (CurrentBlockchainStatus::find_txs_in_mempool(
xmr_address, j_mempool_tx))
{
if(!j_mempool_tx.empty())
{
uint64_t total_received_mempool {0};
// get last tx id (i.e., index) so that we can
// set some ids for the mempool txs. These ids are
// used for sorting in the frontend. Since we want mempool
// tx to be first, they need to be higher than last_tx_id_db
uint64_t last_tx_id_db = j_response["transactions"].back()["id"];
for (json& j_tx: j_mempool_tx)
{
//cout << "mempool j_tx[\"total_received\"]: "
// << j_tx["total_received"] << endl;
j_tx["id"] = ++last_tx_id_db;
total_received_mempool += j_tx["total_received"].get<uint64_t>();
j_response["transactions"].push_back(j_tx);
}
j_response["total_received"] = j_response["total_received"].get<uint64_t>()
+ total_received_mempool;
}
}
string response_body = j_response.dump();
auto response_headers = make_headers({{ "Content-Length", to_string(response_body.size())}});
session->close(OK, response_body, response_headers);
}
void
YourMoneroRequests::get_address_info(const shared_ptr< Session > session, const Bytes & body)
{
json j_request = body_to_json(body);
// if (show_logs)
// print_json_log("get_address_info request: ", j_request);
string xmr_address = j_request["address"];
json j_response {
{"locked_funds", "0"}, // xmr in mempool transactions
{"total_received", "0"}, // taken from Accounts table
{"total_sent", "0"}, // sum of xmr in possible spent outputs
{"scanned_height", 0}, // not used. it is here to match mymonero
{"scanned_block_height", 0}, // taken from Accounts table
{"start_height", 0}, // not used, but available in Accounts table.
// it is here to match mymonero
{"transaction_height", 0}, // not used. it is here to match mymonero
{"blockchain_height", 0}, // current blockchain height
{"spent_outputs", nullptr} // list of spent outputs that we think
// user has spent. client side will
// filter out false positives since
// only client has spent key
};
// a placeholder for exciting or new account data
xmreg::XmrAccount acc;
// select this account if its existing one
if (xmr_accounts->select(xmr_address, acc))
{
uint64_t total_received {0};
// ping the search thread that we still need it.
// otherwise it will finish after some time.
CurrentBlockchainStatus::ping_search_thread(xmr_address);
j_response["total_received"] = total_received;
j_response["start_height"] = acc.start_height;
j_response["scanned_block_height"] = acc.scanned_block_height;
j_response["blockchain_height"] = CurrentBlockchainStatus::get_current_blockchain_height();
uint64_t total_sent {0};
vector<XmrTransaction> txs;
if (xmr_accounts->select_txs_for_account_spendability_check(acc.id, txs))
{
json j_spent_outputs = json::array();
for (XmrTransaction tx: txs)
{
vector<XmrOutput> outs;
if (xmr_accounts->select_outputs_for_tx(tx.id, outs))
{
for (XmrOutput &out: outs)
{
// check if the output, has been spend
vector<XmrInput> ins;
if (xmr_accounts->select_inputs_for_out(out.id, ins))
{
for (XmrInput& in: ins)
{
j_spent_outputs.push_back({
{"amount" , in.amount},
{"key_image" , in.key_image},
{"tx_pub_key" , out.tx_pub_key},
{"out_index" , out.out_index},
{"mixin" , out.mixin},
});
total_sent += in.amount;
}
}
total_received += out.amount;
}
}
}
j_response["total_received"] = total_received;
j_response["total_sent"] = total_sent;
j_response["spent_outputs"] = j_spent_outputs;
}
} // if (xmr_accounts->select(xmr_address, acc))
string response_body = j_response.dump();
auto response_headers = make_headers({{ "Content-Length", to_string(response_body.size())}});
session->close( OK, response_body, response_headers);
}
void
YourMoneroRequests::get_unspent_outs(const shared_ptr< Session > session, const Bytes & body)
{
json j_request = body_to_json(body);
// if (show_logs)
// print_json_log("get_unspent_outs request: ", j_request);
string xmr_address = j_request["address"];
uint64_t mixin = j_request["mixin"];
bool use_dust = j_request["use_dust"];
uint64_t amount = boost::lexical_cast<uint64_t>(j_request["amount"].get<string>());
json j_response {
{"amount" , 0}, // total value of the outputs
{"outputs", json::array()} // list of outputs
// exclude those without require
// no of confirmation
};
// a placeholder for exciting or new account data
xmreg::XmrAccount acc;
// select this account if its existing one
if (xmr_accounts->select(xmr_address, acc))
{
uint64_t total_outputs_amount {0};
uint64_t current_blockchain_height
= CurrentBlockchainStatus::get_current_blockchain_height();
vector<XmrTransaction> txs;
// retrieve txs from mysql associated with the given address
if (xmr_accounts->select_txs(acc.id, txs))
{
// we found some txs.
json& j_outputs = j_response["outputs"];
for (XmrTransaction& tx: txs)
{
// we skip over locked outputs
// as they cant be spent anyway.
// thus no reason to return them to the frontend
// for constructing a tx.
int64_t time_since_unlock = current_blockchain_height - tx.unlock_time;
if (tx.coinbase)
{
if (time_since_unlock < CRYPTONOTE_MINED_MONEY_UNLOCK_WINDOW)
{
continue;
}
}
else
{
if (time_since_unlock < CRYPTONOTE_DEFAULT_TX_SPENDABLE_AGE)
{
continue;
}
}
vector<XmrOutput> outs;
if (xmr_accounts->select_outputs_for_tx(tx.id, outs))
{
for (XmrOutput &out: outs)
{
json j_out{
{"amount", out.amount},
{"public_key", out.out_pub_key},
{"index", out.out_index},
{"global_index", out.global_index},
{"rct" , out.get_rct()},
{"tx_id", out.tx_id},
{"tx_hash", tx.hash},
{"tx_prefix_hash", tx.prefix_hash},
{"tx_pub_key" , out.tx_pub_key},
{"timestamp", out.timestamp},
{"height", tx.height},
{"spend_key_images", json::array()}
};
vector<XmrInput> ins;
if (xmr_accounts->select_inputs_for_out(out.id, ins))
{
json& j_ins = j_out["spend_key_images"];
for (XmrInput& in: ins)
{
j_ins.push_back(in.key_image);
}
}
j_outputs.push_back(j_out);
total_outputs_amount += out.amount;
} //for (XmrOutput &out: outs)
} // if (xmr_accounts->select_outputs_for_tx(tx.id, outs))
} // for (XmrTransaction& tx: txs)
} // if (xmr_accounts->select_txs(acc.id, txs))
j_response["amount"] = total_outputs_amount;
} // if (xmr_accounts->select(xmr_address, acc))
string response_body = j_response.dump();
auto response_headers = make_headers({{ "Content-Length", to_string(response_body.size())}});
session->close( OK, response_body, response_headers);
}
void
YourMoneroRequests::get_random_outs(const shared_ptr< Session > session, const Bytes & body)
{
json j_request = body_to_json(body);
// if (show_logs)
// print_json_log("get_unspent_outs request: ", j_request);
uint64_t count = j_request["count"];
vector<uint64_t> amounts;
for (json amount: j_request["amounts"])
{
amounts.push_back(boost::lexical_cast<uint64_t>(amount.get<string>()));
}
json j_response {
{"amount_outs", json::array()}
};
vector<COMMAND_RPC_GET_RANDOM_OUTPUTS_FOR_AMOUNTS::outs_for_amount> found_outputs;
if (CurrentBlockchainStatus::get_random_outputs(amounts, count, found_outputs))
{
json& j_amount_outs = j_response["amount_outs"];
for (const COMMAND_RPC_GET_RANDOM_OUTPUTS_FOR_AMOUNTS::outs_for_amount& outs: found_outputs)
{
json j_outs {{"amount", outs.amount},
{"outputs", json::array()}};
json& j_outputs = j_outs["outputs"];
for (const COMMAND_RPC_GET_RANDOM_OUTPUTS_FOR_AMOUNTS::out_entry& out: outs.outs)
{
uint64_t global_amount_index = out.global_amount_index;
transaction random_output_tx;
uint64_t output_idx_in_tx;
// we got random outputs, but now we need to get rct data of those
// outputs, because by default frontend created ringct txs.
if (!CurrentBlockchainStatus::get_tx_with_output(
global_amount_index, outs.amount,
random_output_tx, output_idx_in_tx))
{
cerr << "cant get random output transaction" << endl;
break;
}
//cout << pod_to_hex(out.out_key) << endl;
//cout << pod_to_hex(get_transaction_hash(random_output_tx)) << endl;
//cout << output_idx_in_tx << endl;
// placeholder variable for ringct outputs info
// that we need to save in database
string rtc_outpk;
string rtc_mask(64, '0');
string rtc_amount(64, '0');
json out_details {
{"global_index", out.global_amount_index},
{"public_key" , pod_to_hex(out.out_key)}
};
if (random_output_tx.version > 1 && !is_coinbase(random_output_tx))
{
rtc_outpk = pod_to_hex(random_output_tx.rct_signatures.outPk[output_idx_in_tx].mask);
rtc_mask = pod_to_hex(random_output_tx.rct_signatures.ecdhInfo[output_idx_in_tx].mask);
rtc_amount = pod_to_hex(random_output_tx.rct_signatures.ecdhInfo[output_idx_in_tx].amount);
out_details["rct"]= rtc_outpk + rtc_mask + rtc_amount;
}
else
{
// for non ringct txs, we need to take it rct amount acommitment
// and sent to the frontend.
output_data_t od = CurrentBlockchainStatus::get_output_key(outs.amount, global_amount_index);
rtc_outpk = pod_to_hex(od.commitment);
}
out_details["rct"] = rtc_outpk + rtc_mask + rtc_amount;
j_outputs.push_back(out_details);
} // for (const COMMAND_RPC_GET_RANDOM_OUTPUTS_FOR_AMOUNTS::out_entry& out: outs.outs)
j_amount_outs.push_back(j_outs);
} // for (const COMMAND_RPC_GET_RANDOM_OUTPUTS_FOR_AMOUNTS::outs_for_amount& outs: found_outputs)
} // if (CurrentBlockchainStatus::get_random_outputs(amounts, count, found_outputs))
string response_body = j_response.dump();
auto response_headers = make_headers({{ "Content-Length", to_string(response_body.size())}});
session->close( OK, response_body, response_headers);
}
void
YourMoneroRequests::submit_raw_tx(const shared_ptr< Session > session, const Bytes & body)
{
json j_request = body_to_json(body);
// if (show_logs)
// print_json_log("get_unspent_outs request: ", j_request);
string raw_tx_blob = j_request["tx"];
json j_response {
{"status", "error"}
};
if (CurrentBlockchainStatus::commit_tx(raw_tx_blob))
{
j_response["status"] = "OK";
}
string response_body = j_response.dump();
auto response_headers = make_headers({{ "Content-Length", to_string(response_body.size())}});
session->close( OK, response_body, response_headers);
}
void
YourMoneroRequests::import_wallet_request(const shared_ptr< Session > session, const Bytes & body)
{
json j_request = body_to_json(body);
if (show_logs)
print_json_log("import_wallet_request request: ", j_request);
string xmr_address = j_request["address"];
// a placeholder for exciting or new account data
xmreg::XmrPayment xmr_payment;
json j_response;
// select this payment if its existing one
if (xmr_accounts->select_payment_by_address(xmr_address, xmr_payment))
{
// payment record exists, so now we need to check if
// actually payment has been done, and updated
// mysql record accordingly.
bool request_fulfilled = bool {xmr_payment.request_fulfilled};
j_response["payment_id"] = xmr_payment.payment_id;
j_response["import_fee"] = xmr_payment.import_fee;
j_response["new_request"] = false;
j_response["request_fulfilled"] = request_fulfilled;
j_response["payment_address"] = xmr_payment.payment_address;
j_response["status"] = "Payment not yet received";
string tx_hash_with_payment;
if (!request_fulfilled
&& CurrentBlockchainStatus::search_if_payment_made(
xmr_payment.payment_id,
xmr_payment.import_fee,
tx_hash_with_payment))
{
XmrPayment updated_xmr_payment = xmr_payment;
// updated values
updated_xmr_payment.request_fulfilled = true;
updated_xmr_payment.tx_hash = tx_hash_with_payment;
// save to mysql
if (xmr_accounts->update_payment(xmr_payment, updated_xmr_payment))
{
// set scanned_block_height to 0 to begin
// scanning entire blockchain
XmrAccount acc;
if (xmr_accounts->select(xmr_address, acc))
{
XmrAccount updated_acc = acc;
updated_acc.scanned_block_height = 0;
if (xmr_accounts->update(acc, updated_acc))
{
// if success, set acc to updated_acc;
request_fulfilled = true;
// change search blk number in the search thread
if (!CurrentBlockchainStatus::set_new_searched_blk_no(xmr_address, 0))
{
cerr << "Updating searched_blk_no failed!" << endl;
j_response["status"] = "Updating searched_blk_no failed!";
}
}
}
else
{
cerr << "Updating accounts due to made payment mysql failed! " << endl;
j_response["status"] = "Updating accounts due to made payment mysql failed!";
}
}
else
{
cerr << "Updating payment mysql failed! " << endl;
j_response["status"] = "Updating payment mysql failed!";
}
}
if (request_fulfilled)
{
j_response["request_fulfilled"] = request_fulfilled;
j_response["status"] = "Payment received. Thank you.";
}
}
else
{
// payment request is now, so create its entry in
// Payments table
uint64_t payment_table_id {0};
xmr_payment.address = xmr_address;
xmr_payment.payment_id = pod_to_hex(generated_payment_id());
xmr_payment.import_fee = CurrentBlockchainStatus::import_fee; // xmr
xmr_payment.request_fulfilled = false;
xmr_payment.tx_hash = ""; // no tx_hash yet with the payment
xmr_payment.payment_address = CurrentBlockchainStatus::import_payment_address;
if ((payment_table_id = xmr_accounts->insert_payment(xmr_payment)) != 0)
{
// payment entry created
j_response["payment_id"] = xmr_payment.payment_id;
j_response["import_fee"] = xmr_payment.import_fee;
j_response["new_request"] = true;
j_response["request_fulfilled"] = bool {xmr_payment.request_fulfilled};
j_response["payment_address"] = xmr_payment.payment_address;
j_response["status"] = "Payment not yet received";
}
}
string response_body = j_response.dump();
auto response_headers = make_headers({{ "Content-Length", to_string(response_body.size())}});
session->close( OK, response_body, response_headers);
}
shared_ptr<Resource>
YourMoneroRequests::make_resource(
function< void (YourMoneroRequests&, const shared_ptr< Session >, const Bytes& ) > handle_func,
const string& path)
{
auto a_request = std::bind(handle_func, *this, std::placeholders::_1, std::placeholders::_2);
shared_ptr<Resource> resource_ptr = make_shared<Resource>();
resource_ptr->set_path(path);
resource_ptr->set_method_handler( "OPTIONS", generic_options_handler);
resource_ptr->set_method_handler( "POST" , handel_(a_request) );
return resource_ptr;
}
void
YourMoneroRequests::generic_options_handler( const shared_ptr< Session > session )
{
const auto request = session->get_request( );
size_t content_length = request->get_header( "Content-Length", 0);
//cout << "generic_options_handler" << endl;
session->fetch(content_length, [](const shared_ptr< Session > session, const Bytes & body)
{
session->close( OK, string{}, make_headers());
});
}
void
YourMoneroRequests::print_json_log(const string& text, const json& j)
{
cout << text << '\n' << j.dump(4) << endl;
}
string
YourMoneroRequests::body_to_string(const Bytes & body)
{
return string(reinterpret_cast<const char *>(body.data()), body.size());
}
json
YourMoneroRequests::body_to_json(const Bytes & body)
{
json j = json::parse(body_to_string(body));
return j;
}
uint64_t
YourMoneroRequests::get_current_blockchain_height()
{
return CurrentBlockchainStatus::get_current_blockchain_height();
}
// define static variables
bool YourMoneroRequests::show_logs = false;
}