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@ -30,8 +30,15 @@ void ConnectionLoader::loadConnection() { |
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} |
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void ConnectionLoader::doAutoConnect(bool tryEzcashdStart) { |
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// Priority 1: Try to connect to detect zcash.conf and connect to it.
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// Priority 1: Ensure all params are present.
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if (!verifyParams()) { |
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downloadParams([=]() { this->doAutoConnect(); }); |
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return; |
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} |
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// Priority 2: Try to connect to detect zcash.conf and connect to it.
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auto config = autoDetectZcashConf(); |
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main->logger->write("Attempting autoconnect"); |
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if (config.get() != nullptr) { |
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auto connection = makeConnection(config); |
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@ -43,6 +50,7 @@ void ConnectionLoader::doAutoConnect(bool tryEzcashdStart) { |
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this->showInformation("Starting embedded zcashd"); |
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if (this->startEmbeddedZcashd()) { |
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// Embedded zcashd started up. Wait a second and then refresh the connection
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main->logger->write("Embedded zcashd started up, trying autoconnect in 1 sec"); |
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QTimer::singleShot(1000, [=]() { doAutoConnect(); } ); |
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} else { |
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// Something is wrong. This is happenening intermittently on Mac platforms.
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@ -51,10 +59,12 @@ void ConnectionLoader::doAutoConnect(bool tryEzcashdStart) { |
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// - QProcess ended, but the embedded zcashd is still in the background.
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// We're going to attempt to connect to the one in the background one last time
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// and see if that works, else throw an error
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main->logger->write("Something is wrong, trying no-retry autoconnect in 2 sec"); |
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QTimer::singleShot(2000, [=]() { doAutoConnect(/* don't attempt to start ezcashd */ false); }); |
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} |
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} else { |
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// We tried to start ezcashd previously, and it didn't work. So, show the error.
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main->logger->write("Couldn't start embedded zcashd for unknown reason"); |
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QString explanation = QString() % "Couldn't start the embedded zcashd.\n\n" % |
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"Please try restarting.\n\nIfIf you previously started zcashd with custom arguments, you might need to reset zcash.conf.\n\n" % |
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"If all else fails, please run zcashd manually." % |
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@ -64,6 +74,7 @@ void ConnectionLoader::doAutoConnect(bool tryEzcashdStart) { |
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} else { |
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// zcash.conf exists, there's no connection, and the user asked us not to start zcashd. Error!
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main->logger->write("Not using embedded and couldn't connect to zcashd"); |
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QString explanation = QString() % "Couldn't connect to zcashd configured in zcash.conf.\n\n" % |
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"Not starting embedded zcashd because --no-embedded was passed"; |
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this->showError(explanation); |
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@ -101,35 +112,35 @@ QString randomPassword() { |
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* This will create a new zcash.conf, download Zcash parameters. |
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*/ |
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void ConnectionLoader::createZcashConf() { |
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// Fetch params. After params are fetched, create the zcash.conf file and
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// try loading the connection again
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downloadParams([=] () { |
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auto confLocation = zcashConfWritableLocation(); |
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qDebug() << "Creating file " << confLocation; |
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QFileInfo fi(confLocation); |
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QDir().mkdir(fi.dir().absolutePath()); |
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QFile file(confLocation); |
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if (!file.open(QIODevice::ReadWrite | QIODevice::Truncate)) { |
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qDebug() << "Could not create zcash.conf, returning"; |
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return; |
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} |
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QTextStream out(&file); |
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main->logger->write("createZcashConf"); |
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auto confLocation = zcashConfWritableLocation(); |
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main->logger->write("Creating file " + confLocation); |
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QFileInfo fi(confLocation); |
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QDir().mkdir(fi.dir().absolutePath()); |
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QFile file(confLocation); |
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if (!file.open(QIODevice::ReadWrite | QIODevice::Truncate)) { |
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main->logger->write("Could not create zcash.conf, returning"); |
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return; |
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} |
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out << "server=1\n"; |
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out << "addnode=mainnet.z.cash\n"; |
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out << "rpcuser=zec-qt-wallet\n"; |
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out << "rpcpassword=" % randomPassword() << "\n"; |
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file.close(); |
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QTextStream out(&file); |
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out << "server=1\n"; |
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out << "addnode=mainnet.z.cash\n"; |
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out << "rpcuser=zec-qt-wallet\n"; |
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out << "rpcpassword=" % randomPassword() << "\n"; |
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file.close(); |
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this->doAutoConnect(); |
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}); |
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// Now that zcash.conf exists, try to autoconnect again
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this->doAutoConnect(); |
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} |
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void ConnectionLoader::downloadParams(std::function<void(void)> cb) { |
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main->logger->write("Adding params to download queue"); |
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// Add all the files to the download queue
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downloadQueue = new QQueue<QUrl>(); |
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client = new QNetworkAccessManager(main); |
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@ -155,6 +166,7 @@ void ConnectionLoader::doNextDownload(std::function<void(void)> cb) { |
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delete downloadQueue; |
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client->deleteLater(); |
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main->logger->write("All Downloads done"); |
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this->showInformation("All Downloads Finished Successfully!"); |
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cb(); |
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return; |
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@ -167,7 +179,7 @@ void ConnectionLoader::doNextDownload(std::function<void(void)> cb) { |
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QString paramsDir = zcashParamsDir(); |
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if (QFile(QDir(paramsDir).filePath(filename)).exists()) { |
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qDebug() << filename << " already exists, skipping "; |
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main->logger->write(filename + " already exists, skipping"); |
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doNextDownload(cb); |
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return; |
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@ -177,8 +189,10 @@ void ConnectionLoader::doNextDownload(std::function<void(void)> cb) { |
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currentOutput = new QFile(QDir(paramsDir).filePath(filename + ".part")); |
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if (!currentOutput->open(QIODevice::WriteOnly)) { |
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main->logger->write("Couldn't open " + currentOutput->fileName() + " for writing"); |
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this->showError("Couldn't download params. Please check the help site for more info."); |
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} |
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main->logger->write("Downloading to " + filename); |
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qDebug() << "Downloading " << url << " to " << filename; |
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QNetworkRequest request(url); |
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@ -209,6 +223,7 @@ void ConnectionLoader::doNextDownload(std::function<void(void)> cb) { |
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// Download Finished
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QObject::connect(currentDownload, &QNetworkReply::finished, [=] () { |
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// Rename file
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main->logger->write("Finished downloading " + filename); |
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currentOutput->rename(QDir(paramsDir).filePath(filename)); |
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currentOutput->close(); |
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@ -216,7 +231,8 @@ void ConnectionLoader::doNextDownload(std::function<void(void)> cb) { |
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currentOutput->deleteLater(); |
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if (currentDownload->error()) { |
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this->showError("Downloading " + filename + " failed/ Please check the help site for more info"); |
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main->logger->write("Downloading " + filename + " failed"); |
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this->showError("Downloading " + filename + " failed. Please check the help site for more info"); |
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} else { |
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doNextDownload(cb); |
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} |
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@ -231,6 +247,8 @@ void ConnectionLoader::doNextDownload(std::function<void(void)> cb) { |
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bool ConnectionLoader::startEmbeddedZcashd() { |
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if (!Settings::getInstance()->useEmbedded()) |
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return false; |
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main->logger->write("Trying to start embedded zcashd"); |
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// Static because it needs to survive even after this method returns.
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static QString processStdErrOutput; |
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@ -263,6 +281,7 @@ bool ConnectionLoader::startEmbeddedZcashd() { |
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if (!QFile(zcashdProgram).exists()) { |
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qDebug() << "Can't find zcashd at " << zcashdProgram; |
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main->logger->write("Can't find zcashd at " + zcashdProgram); |
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return false; |
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} |
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@ -282,7 +301,7 @@ bool ConnectionLoader::startEmbeddedZcashd() { |
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QObject::connect(ezcashd, &QProcess::readyReadStandardError, [=]() { |
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auto output = ezcashd->readAllStandardError(); |
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qDebug() << "zcashd stderr:" << output; |
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main->logger->write("zcashd stderr:" + output); |
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processStdErrOutput.append(output); |
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}); |
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@ -375,6 +394,7 @@ void ConnectionLoader::refreshZcashdState(Connection* connection, std::function< |
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if (err == QNetworkReply::NetworkError::ConnectionRefusedError) { |
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refused(); |
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} else if (err == QNetworkReply::NetworkError::AuthenticationRequiredError) { |
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main->logger->write("Authentication failed"); |
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QString explanation = QString() |
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% "Authentication failed. The username / password you specified was " |
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% "not accepted by zcashd. Try changing it in the Edit->Settings menu"; |
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@ -392,7 +412,7 @@ void ConnectionLoader::refreshZcashdState(Connection* connection, std::function< |
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dots = 0; |
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} |
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this->showInformation("Your zcashd is starting up. Please wait.", status); |
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main->logger->write("Waiting to zcashd to come online."); |
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// Refresh after one second
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QTimer::singleShot(1000, [=]() { this->refreshZcashdState(connection, refused); }); |
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} |
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@ -424,6 +444,8 @@ QString ConnectionLoader::locateZcashConfFile() { |
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#else |
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auto confLocation = QStandardPaths::locate(QStandardPaths::AppDataLocation, "../../Zcash/zcash.conf"); |
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#endif |
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main->logger->write("Found zcashconf at " + QDir::cleanPath(confLocation)); |
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return QDir::cleanPath(confLocation); |
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} |
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@ -436,7 +458,8 @@ QString ConnectionLoader::zcashConfWritableLocation() { |
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auto confLocation = QDir(QStandardPaths::writableLocation(QStandardPaths::AppDataLocation)).filePath("../../Zcash/zcash.conf"); |
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#endif |
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return confLocation; |
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main->logger->write("Found zcashconf at " + QDir::cleanPath(confLocation)); |
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return QDir::cleanPath(confLocation); |
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} |
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QString ConnectionLoader::zcashParamsDir() { |
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@ -449,12 +472,26 @@ QString ConnectionLoader::zcashParamsDir() { |
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#endif |
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if (!paramsLocation.exists()) { |
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main->logger->write("Creating params location at " + paramsLocation.absolutePath()); |
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QDir().mkpath(paramsLocation.absolutePath()); |
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} |
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main->logger->write("Found zcash params directory at " + paramsLocation.absolutePath()); |
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return paramsLocation.absolutePath(); |
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} |
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bool ConnectionLoader::verifyParams() { |
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QDir paramsDir(zcashParamsDir()); |
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if (!QFile(paramsDir.filePath("sapling-output.params")).exists()) return false; |
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if (!QFile(paramsDir.filePath("sapling-spend.params")).exists()) return false; |
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if (!QFile(paramsDir.filePath("sprout-proving.key")).exists()) return false; |
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if (!QFile(paramsDir.filePath("sprout-verifying.key")).exists()) return false; |
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if (!QFile(paramsDir.filePath("sprout-groth16.params")).exists()) return false; |
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return true; |
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} |
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/**
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* Try to automatically detect a zcash.conf file in the correct location and load parameters |
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*/ |
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@ -506,9 +543,10 @@ std::shared_ptr<ConnectionConfig> ConnectionLoader::autoDetectZcashConf() { |
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// If rpcport is not in the file, and it was not set by the testnet=1 flag, then go to default
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if (zcashconf->port.isEmpty()) zcashconf->port = "8232"; |
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file.close(); |
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// In addition to the zcash.conf file, also double check the params.
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return std::shared_ptr<ConnectionConfig>(zcashconf); |
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} |
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