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245 lines
7.8 KiB
245 lines
7.8 KiB
/* |
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* Copyright (c) 2021, evilny0 |
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* |
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* This file is part of cpfm. |
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* |
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* cpfm is free software: you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License as published by |
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* the Free Software Foundation, either version 3 of the License, or |
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* (at your option) any later version. |
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* |
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* cpm is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* You should have received a copy of the GNU General Public License |
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* along with cpfm. If not, see <http://www.gnu.org/licenses/>. |
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* |
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*/ |
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#include "datasources/blockchair.h" |
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Time BlockchainDataSourceTypeBTC_Blockchair::getTimeFromString(string s) |
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{ |
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std::istringstream in{s}; |
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date::sys_time<std::chrono::seconds> tp; |
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in >> date::parse("%F %T", tp); |
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Time t; |
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t.setFromUnixTime(std::chrono::system_clock::to_time_t(tp)); |
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return t; |
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} |
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list<BlockchainTxDetailsTypeBTC> BlockchainDataSourceTypeBTC_Blockchair::getTxDetailsListForAddresses(list<string> addresses) |
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{ |
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linfo << "Blockchair : analyzing address list"; |
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list<BlockchainTxDetailsTypeBTC> l; |
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if (!bfs::exists(getCacheFilenameForAddresses(addresses))) |
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{ |
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saveBlockchainAddressesDataToCacheFile(addresses); |
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} |
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if (!bfs::exists(getCacheFilenameForAddresses(addresses))) |
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{ |
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lerr << "Blockchair : cache file could not be found. Addresses data was not retrieved."; |
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return l; |
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} |
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ifstream f; |
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f.open(getCacheFilenameForAddresses(addresses)); |
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json::value jvalue = json::value::parse(f); |
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f.close(); |
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for (int i=0;i<jvalue["data"]["transactions"].size();i++) |
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{ |
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string txHash = jvalue["data"]["transactions"][i].as_string(); |
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linfo << "Blockchair : found tx " << txHash << ". Starting analysis."; |
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if (!bfs::exists(getCacheFilenameForTx(txHash))) |
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{ |
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saveBlockchainTxDataToCacheFile(txHash); |
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} |
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if (!bfs::exists(getCacheFilenameForTx(txHash))) |
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{ |
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lerr << "Blockchair : cache file for tx " << txHash << " could not be found. Tx data was not retrieved."; |
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} |
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ifstream fTx; |
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fTx.open(getCacheFilenameForTx(txHash)); |
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json::value jvalueTx = json::value::parse(fTx); |
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fTx.close(); |
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BlockchainTxDetailsTypeBTC tx; |
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tx.hash = txHash; |
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tx.time = getTimeFromString (jvalueTx["data"][txHash]["transaction"]["time"].as_string()); |
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for (int j=0;j<jvalueTx["data"][txHash]["inputs"].size();j++) |
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{ |
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string addr = jvalueTx["data"][txHash]["inputs"][j]["recipient"].as_string(); |
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__int64 amount = jvalueTx["data"][txHash]["inputs"][j]["value"].as_integer(); |
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Money m = amount; |
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Money mdecimals = m/100000000; |
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// The same address can be multiple time in the inputs, so we need to sum the amounts. |
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tx.inputs[addr] += mdecimals; |
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} |
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for (int j=0;j<jvalueTx["data"][txHash]["outputs"].size();j++) |
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{ |
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string addr = jvalueTx["data"][txHash]["outputs"][j]["recipient"].as_string(); |
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__int64 amount = jvalueTx["data"][txHash]["outputs"][j]["value"].as_integer(); |
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Money m = amount; |
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Money mdecimals = m/100000000; |
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// The same address can only be once in the outputs. |
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tx.outputs[addr] = mdecimals; |
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} |
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l.push_back(tx); |
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linfo << "Blockchair : finished analysis for tx " << txHash << "."; |
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} |
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linfo << "Blockchair : finished analysis for address list."; |
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return l; |
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} |
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string BlockchainDataSourceTypeBTC_Blockchair::getCacheFilenameForAddresses(list<string> addresses) |
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{ |
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string s; |
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for (const auto a: addresses) |
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s = s+a; |
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string cacheFilename("data/cache/blockchair/"+m_blockchainName+"/addresses/" + s); |
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return cacheFilename; |
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} |
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string BlockchainDataSourceTypeBTC_Blockchair::getCacheFilenameForTx(string txHash) |
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{ |
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string cacheFilename("data/cache/blockchair/"+m_blockchainName+"/tx/" + txHash); |
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return cacheFilename; |
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} |
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void BlockchainDataSourceTypeBTC_Blockchair::saveBlockchainAddressesDataToCacheFile(list<string> addresses) |
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{ |
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try |
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{ |
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string s; |
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for (const auto a: addresses) |
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{ |
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if (s.length()) |
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s = s+","+a; |
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else |
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s = a; |
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} |
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linfo << "Blockchair : querying API about addresses : " << s; |
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string sRequestURL = "/"+m_blockchainName+"/dashboards/addresses/"; |
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sRequestURL += s; |
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http_client apiclient("https://api.blockchair.com/"); |
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m_currentRequestCacheFilename = getCacheFilenameForAddresses(addresses); |
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ltrace << "Blockchair : query : " << sRequestURL; |
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apiclient.request(methods::GET,sRequestURL).then([](http_response response) |
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{ |
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if (response.status_code() == status_codes::OK) |
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{ |
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ldebug << "Blockchair : response OK."; |
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return response.extract_json(); |
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} |
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else if (response.status_code() == status_codes::TooManyRequests) |
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{ |
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lwarn << "Blockchair : too many queries! We are being rate limited."; |
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pplx::task_from_result(json::value()); |
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} |
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return pplx::task_from_result(json::value()); |
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}) |
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.then([this](pplx::task<json::value> previousTask) |
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{ |
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if (previousTask.get() != json::value::null()) |
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{ |
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linfo << "Blockchair : saving query result to " << m_currentRequestCacheFilename; |
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ofstream f; |
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f.open(m_currentRequestCacheFilename); |
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f << previousTask.get(); |
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f.close(); |
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} |
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else |
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{ |
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lerr << "Blockchair : query result is empty. Nothing will be saved to the cache file."; |
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} |
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}) |
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.wait(); |
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} |
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catch(const http::http_exception& e) |
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{ |
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lerr << "Blockchair : failed to query API"; |
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} |
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} |
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void BlockchainDataSourceTypeBTC_Blockchair::saveBlockchainTxDataToCacheFile(string txHash) |
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{ |
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try |
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{ |
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linfo << "Blockchair : querying API about tx : " << txHash; |
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string sRequestURL = "/"+m_blockchainName+"/dashboards/transaction/"; |
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sRequestURL += txHash; |
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http_client apiclient("https://api.blockchair.com/"); |
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m_currentRequestCacheFilename = getCacheFilenameForTx(txHash); |
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ltrace << "Blockchair : query : " << sRequestURL; |
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apiclient.request(methods::GET,sRequestURL).then([](http_response response) |
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{ |
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if (response.status_code() == status_codes::OK) |
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{ |
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ldebug << "Blockchair : response OK."; |
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return response.extract_json(); |
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} |
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else if (response.status_code() == status_codes::TooManyRequests) |
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{ |
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lwarn << "Blockchair : too many queries! We are being rate limited."; |
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pplx::task_from_result(json::value()); |
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} |
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return pplx::task_from_result(json::value()); |
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}) |
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.then([this](pplx::task<json::value> previousTask) |
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{ |
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if (previousTask.get() != json::value::null()) |
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{ |
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linfo << "Blockchair : saving query result to " << m_currentRequestCacheFilename; |
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ofstream f; |
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f.open(m_currentRequestCacheFilename); |
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f << previousTask.get(); |
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f.close(); |
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} |
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else |
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{ |
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lerr << "Blockchair : query result is empty. Nothing will be saved to the cache file."; |
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} |
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}) |
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.wait(); |
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} |
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catch(const http::http_exception& e) |
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{ |
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lerr << "Blockchair : failed to query API about " << txHash; |
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} |
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}
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