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664 lines
22 KiB
664 lines
22 KiB
//
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// Created by mwo on 8/12/16.
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//
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#ifndef RESTBED_XMR_YOURMONEROREQUESTS_H
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#define RESTBED_XMR_YOURMONEROREQUESTS_H
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#include <iostream>
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#include <functional>
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#include "MySqlConnector.h"
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#include "CurrentBlockchainStatus.h"
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#include "tools.h"
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#include "../ext/restbed/source/restbed"
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namespace xmreg
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{
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using namespace std;
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using namespace restbed;
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using namespace nlohmann;
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string
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get_current_time(const char* format = "%a, %d %b %Y %H:%M:%S %Z")
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{
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auto current_time = date::make_zoned(
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date::current_zone(),
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date::floor<chrono::seconds>(std::chrono::system_clock::now())
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);
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return date::format(format, current_time);
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}
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multimap<string, string>
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make_headers(const multimap<string, string>& extra_headers = multimap<string, string>())
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{
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multimap<string, string> headers {
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{"Date", get_current_time()},
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{"Access-Control-Allow-Origin", "http://127.0.0.1:81"},
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{"access-control-allow-headers", "*, DNT,X-CustomHeader,Keep-Alive,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type,Set-Cookie"},
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{"access-control-max-age", "86400, 1728000"},
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{"access-control-allow-methods", "GET, POST, OPTIONS"},
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{"access-control-allow-credentials", "true"},
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{"Content-Type", "application/json"}
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};
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headers.insert(extra_headers.begin(), extra_headers.end());
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return headers;
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};
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struct handel_
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{
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using fetch_func_t = function< void ( const shared_ptr< Session >, const Bytes& ) >;
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fetch_func_t request_callback;
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handel_(const fetch_func_t& callback):
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request_callback {callback}
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{}
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void operator()(const shared_ptr< Session > session)
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{
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const auto request = session->get_request( );
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size_t content_length = request->get_header( "Content-Length", 0);
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session->fetch(content_length, this->request_callback);
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}
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};
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class YourMoneroRequests
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{
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// this manages all mysql queries
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shared_ptr<MySqlAccounts> xmr_accounts;
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public:
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static bool show_logs;
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YourMoneroRequests(shared_ptr<MySqlAccounts> _acc):
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xmr_accounts {_acc}
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{}
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/**
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* A login request handler.
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*
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* It takes address and viewkey from the request
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* and check mysql if address/account exist. If yes,
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* it returns this account. If not, it creates new one.
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*
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* Once this complites, a thread is tarted that looks
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* for txs belonging to that account.
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*
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* @param session a Restbed session
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* @param body a POST body, i.e., json string
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*/
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void
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login(const shared_ptr<Session> session, const Bytes & body)
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{
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json j_request = body_to_json(body);
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if (show_logs)
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print_json_log("login request: ", j_request);
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string xmr_address = j_request["address"];
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// a placeholder for exciting or new account data
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xmreg::XmrAccount acc;
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uint64_t acc_id {0};
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json j_response;
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// select this account if its existing one
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if (xmr_accounts->select(xmr_address, acc))
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{
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j_response = {{"new_address", false}};
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}
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else
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{
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// account does not exist, so create new one
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// for this address
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// we will save current blockchain height
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// in mysql, so that we know from what block
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// to start searching txs of this new acount
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// make it 1 block lower than current, just in case.
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// this variable will be our using to initialize
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// `canned_block_height` in mysql Accounts table.
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uint64_t current_blkchain_height = get_current_blockchain_height() - 1;
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if ((acc_id = xmr_accounts->insert(xmr_address, current_blkchain_height)) != 0)
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{
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// select newly created account
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if (xmr_accounts->select(acc_id, acc))
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{
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j_response = {{"new_address", true}};
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}
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}
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}
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acc.viewkey = j_request["view_key"];
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// so we have an account now. Either existing or
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// newly created. Thus, we can start a tread
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// which will scan for transactions belonging to
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// that account, using its address and view key.
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// the thread will scan the blockchain for txs belonging
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// to that account and updated mysql database whenever it
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// will find something.
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//
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// The other client (i.e., a webbrowser) will query other functions to retrieve
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// any belonging transactions in a loop. Thus the thread does not need
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// to do anything except looking for tx and updating mysql
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// with relative tx information
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if (CurrentBlockchainStatus::start_tx_search_thread(acc))
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{
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cout << "Search thread started" << endl;
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}
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string response_body = j_response.dump();
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auto response_headers = make_headers({{ "Content-Length", to_string(response_body.size())}});
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session->close( OK, response_body, response_headers);
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}
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void
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get_address_txs(const shared_ptr< Session > session, const Bytes & body)
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{
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json j_request = body_to_json(body);
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// if (show_logs)
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// print_json_log("get_address_txs request: ", j_request);
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string xmr_address = j_request["address"];
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// initialize json response
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json j_response {
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{ "total_received", "0"}, // taken from Accounts table
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{ "scanned_height", 0}, // not used. it is here to match mymonero
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{ "scanned_block_height", 0}, // taken from Accounts table
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{ "start_height", 0}, // blockchain hieght when acc was created
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{ "transaction_height", 0}, // not used. it is here to match mymonero
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{ "blockchain_height", 0} // current blockchain height
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};
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// a placeholder for exciting or new account data
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xmreg::XmrAccount acc;
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// select this account if its existing one
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if (xmr_accounts->select(xmr_address, acc))
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{
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j_response["total_received"] = acc.total_received;
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j_response["start_height"] = acc.start_height;
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j_response["scanned_block_height"] = acc.scanned_block_height;
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j_response["blockchain_height"] = CurrentBlockchainStatus::get_current_blockchain_height();
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vector<XmrTransaction> txs;
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// retrieve txs from mysql associated with the given address
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if (xmr_accounts->select_txs(acc.id, txs))
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{
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if (!txs.empty())
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{
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// we found some txs.
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json j_txs = json::array();
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for (XmrTransaction tx: txs)
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{
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// get inputs associated with a given
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// transaction, if any.
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json j_tx = tx.to_json();
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vector<XmrTransactionWithOutsAndIns> inputs;
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if (xmr_accounts->select_inputs_for_tx(tx.id, inputs))
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{
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json j_spent_outputs = json::array();
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uint64_t total_spent {0};
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for (XmrTransactionWithOutsAndIns input: inputs)
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{
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total_spent += input.amount;
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j_spent_outputs.push_back(input.spent_output());
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}
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j_tx["total_sent"] = total_spent;
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j_tx["spent_outputs"] = j_spent_outputs;
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}
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j_txs.push_back(j_tx);
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}
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j_response["transactions"] = j_txs;
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} // if (!txs.empty())
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} // if (xmr_accounts->select_txs(acc.id, txs))
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} // if (xmr_accounts->select(xmr_address, acc))
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string response_body = j_response.dump();
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auto response_headers = make_headers({{ "Content-Length", to_string(response_body.size())}});
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session->close( OK, response_body, response_headers);
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}
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void
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get_address_info(const shared_ptr< Session > session, const Bytes & body)
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{
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json j_request = body_to_json(body);
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// if (show_logs)
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// print_json_log("get_address_info request: ", j_request);
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string xmr_address = j_request["address"];
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json j_response {
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{"locked_funds", "0"}, // xmr in mempool transactions
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{"total_received", "0"}, // taken from Accounts table
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{"total_sent", "0"}, // sum of xmr in possible spent outputs
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{"scanned_height", 0}, // not used. it is here to match mymonero
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{"scanned_block_height", 0}, // taken from Accounts table
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{"start_height", 0}, // not used, but available in Accounts table.
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// it is here to match mymonero
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{"transaction_height", 0}, // not used. it is here to match mymonero
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{"blockchain_height", 0}, // current blockchain height
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{"spent_outputs", nullptr} // list of spent outputs that we think
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// user has spent. client side will
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// filter out false positives since
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// only client has spent key
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};
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// a placeholder for exciting or new account data
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xmreg::XmrAccount acc;
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// select this account if its existing one
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if (xmr_accounts->select(xmr_address, acc))
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{
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// ping the search thread that we still need it.
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// otherwise it will finish after some time.
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CurrentBlockchainStatus::ping_search_thread(xmr_address);
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j_response["total_received"] = acc.total_received;
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j_response["start_height"] = acc.start_height;
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j_response["scanned_block_height"] = acc.scanned_block_height;
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j_response["blockchain_height"] = CurrentBlockchainStatus::get_current_blockchain_height();
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uint64_t total_sent {0};
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vector<XmrTransactionWithOutsAndIns> txs;
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// retrieve txs from mysql associated with the given address
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if (xmr_accounts->select_txs_with_inputs_and_outputs(acc.id, txs))
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{
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// we found some txs.
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if (!txs.empty())
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{
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//
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json j_spent_outputs = json::array();
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for (XmrTransactionWithOutsAndIns tx: txs)
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{
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if (tx.key_image.is_null)
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{
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continue;
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}
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j_spent_outputs.push_back(tx.spent_output());
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total_sent += tx.amount;
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}
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j_response["spent_outputs"] = j_spent_outputs;
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j_response["total_sent"] = total_sent;
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} // if (!txs.empty())
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} // if (xmr_accounts->select_txs_with_inputs_and_outputs(acc.id, txs))
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} // if (xmr_accounts->select(xmr_address, acc))
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string response_body = j_response.dump();
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auto response_headers = make_headers({{ "Content-Length", to_string(response_body.size())}});
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session->close( OK, response_body, response_headers);
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}
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void
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get_unspent_outs(const shared_ptr< Session > session, const Bytes & body)
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{
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json j_request = body_to_json(body);
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// if (show_logs)
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// print_json_log("get_unspent_outs request: ", j_request);
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string xmr_address = j_request["address"];
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uint64_t mixin = j_request["mixin"];
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bool use_dust = j_request["use_dust"];
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uint64_t amount = boost::lexical_cast<uint64_t>(j_request["amount"].get<string>());
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json j_response {
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{"amount" , 0}, // total value of the outputs
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{"outputs", json::array()} // list of outputs
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// exclude those without require
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// no of confirmation
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};
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// a placeholder for exciting or new account data
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xmreg::XmrAccount acc;
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// select this account if its existing one
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if (xmr_accounts->select(xmr_address, acc))
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{
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uint64_t total_outputs_amount {0};
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vector<XmrTransaction> txs;
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// retrieve txs from mysql associated with the given address
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if (xmr_accounts->select_txs(acc.id, txs))
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{
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// we found some txs.
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json& j_outputs = j_response["outputs"];
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for (XmrTransaction& tx: txs)
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{
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vector<XmrOutput> outs;
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if (xmr_accounts->select_outputs_for_tx(tx.id, outs))
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{
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for (XmrOutput &out: outs)
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{
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json j_out{
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{"amount", out.amount},
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{"public_key", out.out_pub_key},
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{"index", out.out_index},
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{"global_index", out.global_index},
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{"tx_id", out.tx_id},
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{"tx_hash", tx.hash},
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{"tx_prefix_hash", tx.prefix_hash},
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{"tx_pub_key" , out.tx_pub_key},
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{"timestamp", out.timestamp},
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{"height", tx.height},
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{"spend_key_images", json::array()}
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};
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vector<XmrInput> ins;
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if (xmr_accounts->select_inputs_for_out(out.id, ins))
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{
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json& j_ins = j_out["spend_key_images"];
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for (XmrInput& in: ins)
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{
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j_ins.push_back(in.key_image);
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}
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}
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j_outputs.push_back(j_out);
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total_outputs_amount += out.amount;
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} //for (XmrOutput &out: outs)
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} // if (xmr_accounts->select_outputs_for_tx(tx.id, outs))
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} // for (XmrTransaction& tx: txs)
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} // if (xmr_accounts->select_txs(acc.id, txs))
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j_response["amount"] = total_outputs_amount;
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} // if (xmr_accounts->select(xmr_address, acc))
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string response_body = j_response.dump();
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auto response_headers = make_headers({{ "Content-Length", to_string(response_body.size())}});
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session->close( OK, response_body, response_headers);
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}
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void
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get_random_outs(const shared_ptr< Session > session, const Bytes & body)
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{
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json j_request = body_to_json(body);
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// if (show_logs)
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// print_json_log("get_unspent_outs request: ", j_request);
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uint64_t count = j_request["count"];
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vector<uint64_t> amounts;
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for (json amount: j_request["amounts"])
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{
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amounts.push_back(boost::lexical_cast<uint64_t>(amount.get<string>()));
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}
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json j_response {
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{"amount_outs", json::array()}
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};
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vector<COMMAND_RPC_GET_RANDOM_OUTPUTS_FOR_AMOUNTS::outs_for_amount> found_outputs;
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if (CurrentBlockchainStatus::get_random_outputs(amounts, count, found_outputs))
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{
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json& j_amount_outs = j_response["amount_outs"];
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for (const COMMAND_RPC_GET_RANDOM_OUTPUTS_FOR_AMOUNTS::outs_for_amount& outs: found_outputs)
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{
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json j_outs {{"amount", outs.amount},
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{"outputs", json::array()}};
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json& j_outputs = j_outs["outputs"];
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for (const COMMAND_RPC_GET_RANDOM_OUTPUTS_FOR_AMOUNTS::out_entry& out: outs.outs)
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{
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j_outputs.push_back(json {
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{"global_index", out.global_amount_index},
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{"public_key" , pod_to_hex(out.out_key)}
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});
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}
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j_amount_outs.push_back(j_outs);
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}
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}
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string response_body = j_response.dump();
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auto response_headers = make_headers({{ "Content-Length", to_string(response_body.size())}});
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session->close( OK, response_body, response_headers);
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}
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void
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submit_raw_tx(const shared_ptr< Session > session, const Bytes & body)
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{
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json j_request = body_to_json(body);
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// if (show_logs)
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// print_json_log("get_unspent_outs request: ", j_request);
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string raw_tx_blob = j_request["tx"];
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json j_response {
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{"status", "error"}
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};
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if (CurrentBlockchainStatus::commit_tx(raw_tx_blob))
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{
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j_response["status"] = "OK";
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}
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string response_body = j_response.dump();
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auto response_headers = make_headers({{ "Content-Length", to_string(response_body.size())}});
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session->close( OK, response_body, response_headers);
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}
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void
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import_wallet_request(const shared_ptr< Session > session, const Bytes & body)
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{
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json j_request = body_to_json(body);
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if (show_logs)
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print_json_log("import_wallet_request request: ", j_request);
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string xmr_address = j_request["address"];
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// a placeholder for exciting or new account data
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xmreg::XmrPayment xmr_payment;
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json j_response;
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// select this payment if its existing one
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if (xmr_accounts->select_payment_by_address(xmr_address, xmr_payment))
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{
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j_response["payment_id"] = xmr_payment.payment_id;
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j_response["import_fee"] = xmr_payment.import_fee;
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j_response["new_request"] = false;
|
|
j_response["request_fulfilled"] = bool {xmr_payment.request_fulfilled};
|
|
j_response["payment_address"] = xmr_payment.payment_address;
|
|
|
|
if (bool {xmr_payment.request_fulfilled} == false)
|
|
{
|
|
j_response["status"] = "Payment not yet received";
|
|
}
|
|
else
|
|
{
|
|
j_response["status"] = "Payment received";
|
|
}
|
|
}
|
|
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 = 1000000000000; // xmr
|
|
xmr_payment.request_fulfilled = false;
|
|
xmr_payment.tx_hash = ""; // no tx_hash yet with the payment
|
|
xmr_payment.payment_address = "49tyE1AZLzDHM1JPeLeG3vMjqXDGQRQPwWij3ARjZfQMhRLDNyH8PyJVX9AxF3jzabUqjQSecbzYm1JX3MtSib1NQvodSMQ";
|
|
|
|
|
|
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>
|
|
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;
|
|
}
|
|
|
|
|
|
static void
|
|
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());
|
|
});
|
|
}
|
|
|
|
static void
|
|
print_json_log(const string& text, const json& j)
|
|
{
|
|
cout << text << '\n' << j.dump(4) << endl;
|
|
}
|
|
|
|
|
|
static inline string
|
|
body_to_string(const Bytes & body)
|
|
{
|
|
return string(reinterpret_cast<const char *>(body.data()), body.size());
|
|
}
|
|
|
|
static inline json
|
|
body_to_json(const Bytes & body)
|
|
{
|
|
json j = json::parse(body_to_string(body));
|
|
return j;
|
|
}
|
|
|
|
|
|
|
|
inline uint64_t
|
|
get_current_blockchain_height()
|
|
{
|
|
return CurrentBlockchainStatus::get_current_blockchain_height();
|
|
}
|
|
|
|
private:
|
|
|
|
|
|
|
|
};
|
|
|
|
// define static variables
|
|
|
|
bool YourMoneroRequests::show_logs = false;
|
|
|
|
|
|
}
|
|
#endif //RESTBED_XMR_YOURMONEROREQUESTS_H
|