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Manage connection

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This commit is contained in:
Aditya Kulkarni
2018-11-01 14:10:26 -07:00
parent 08bf060186
commit 1b4ced8c82
9 changed files with 221 additions and 214 deletions
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129
src/connection.cpp
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@@ -7,7 +7,7 @@
#include "precompiled.h"
using json = nlohmann::json;
/*
class LoadingDialog : public QDialog {
//Q_OBJECT
public:
@@ -22,11 +22,12 @@ LoadingDialog::~LoadingDialog() {}
void LoadingDialog::reject() {
//event->ignore();
}
ConnectionLoader::ConnectionLoader(MainWindow* main) {
*/
ConnectionLoader::ConnectionLoader(MainWindow* main, RPC* rpc) {
this->main = main;
this->rpc = rpc;
d = new LoadingDialog(main);
d = new QDialog(main);
connD = new Ui_ConnectionDialog();
connD->setupUi(d);
@@ -44,84 +45,124 @@ ConnectionLoader::~ConnectionLoader() {
delete connD;
}
void ConnectionLoader::getConnection(std::function<void(RPC*)> cb) {
void ConnectionLoader::loadConnection() {
// Priority 1: Try to connect to detect zcash.conf and connect to it.
bool isZcashConfPresent = false;
auto conn = autoDetectZcashConf();
auto config = autoDetectZcashConf();
// If not autodetected, go and read the UI Settings
if (conn.get() != nullptr) {
if (config.get() != nullptr) {
isZcashConfPresent = true;
} else {
conn = loadFromSettings();
config = loadFromSettings();
if (conn.get() == nullptr) {
if (config.get() == nullptr) {
// Nothing configured, show an error
auto explanation = QString()
% "A zcash.conf was not found on this machine.\n\n"
% "If you are connecting to a remote/non-standard node "
% "please set the host/port and user/password in the File->Settings menu.";
QIcon icon = QApplication::style()->standardIcon(QStyle::SP_MessageBoxCritical);
connD->icon->setPixmap(icon.pixmap(64, 64));
connD->status->setText(explanation);
connD->progressBar->setValue(0);
showError(explanation);
rpc->setConnection(nullptr);
connD->buttonBox->setEnabled(true);
cb(nullptr);
return;
}
}
auto connection = makeConnection(config);
refreshZcashdState(connection);
}
Connection* ConnectionLoader::makeConnection(std::shared_ptr<ConnectionConfig> config) {
QNetworkAccessManager* client = new QNetworkAccessManager(main);
QUrl myurl;
myurl.setScheme("http");
myurl.setHost(Settings::getInstance()->getHost());
myurl.setPort(Settings::getInstance()->getPort().toInt());
myurl.setHost(config.get()->host);
myurl.setPort(config.get()->port.toInt());
QNetworkRequest* request = new QNetworkRequest();
request->setUrl(myurl);
request->setHeader(QNetworkRequest::ContentTypeHeader, "text/plain");
QString headerData = "Basic " + Settings::getInstance()->getUsernamePassword().toLocal8Bit().toBase64();
request->setRawHeader("Authorization", headerData.toLocal8Bit());
QString userpass = config.get()->rpcuser % ":" % config.get()->rpcpassword;
QString headerData = "Basic " + userpass.toLocal8Bit().toBase64();
request->setRawHeader("Authorization", headerData.toLocal8Bit());
auto connection = new Connection(client, request);
return new Connection(client, request, config);
}
void ConnectionLoader::refreshZcashdState(Connection* connection) {
json payload = {
{"jsonrpc", "1.0"},
{"id", "someid"},
{"method", "getinfo"}
};
connection->doRPC(payload,
[=] (auto result) {
[=] (auto) {
// Success
d->close();
cb(new RPC(connection, main));
d->hide();
rpc->setConnection(connection);
},
[=] (auto err, auto res) {
// Failed
auto explanation = QString()
% (isZcashConfPresent ? "A zcash.conf file was found, but a" : "A")
% " connection to zcashd could not be established.\n\n"
% "If you are connecting to a remote/non-standard node "
% "please set the host/port and user/password in the File->Settings menu.";
// Failed, see what it is.
qDebug() << err << ":" << QString::fromStdString(res.dump());
QIcon icon = QApplication::style()->standardIcon(QStyle::SP_MessageBoxCritical);
connD->icon->setPixmap(icon.pixmap(64, 64));
connD->status->setText(explanation);
connD->progressBar->setValue(0);
if (err == QNetworkReply::NetworkError::ConnectionRefusedError) {
auto isZcashConfFound = connection->config.get()->usingZcashConf;
auto explanation = QString()
% (isZcashConfFound ? "A zcash.conf file was found, but a" : "A")
% " connection to zcashd could not be established.\n\n"
% "If you are connecting to a remote/non-standard node "
% "please set the host/port and user/password in the File->Settings menu";
connD->buttonBox->setEnabled(true);
showError(explanation);
} else if (err == QNetworkReply::NetworkError::AuthenticationRequiredError) {
auto explanation = QString()
% "Authentication failed. The username / password you specified was "
% "not accepted by zcashd. Try changing it in the File->Settings menu";
showError(explanation);
} else if (err == QNetworkReply::NetworkError::InternalServerError && !res.is_discarded()) {
// The server is loading, so just poll until it succeeds
QString status = QString::fromStdString(res["error"]["message"]);
QIcon icon = QApplication::style()->standardIcon(QStyle::SP_MessageBoxInformation);
connD->icon->setPixmap(icon.pixmap(128, 128));
connD->status->setText(status);
// Refresh after one second
QTimer::singleShot(1000, [=]() { this->refreshZcashdState(connection); });
}
}
);
}
void ConnectionLoader::showError(QString explanation) {
QIcon icon = QApplication::style()->standardIcon(QStyle::SP_MessageBoxCritical);
connD->icon->setPixmap(icon.pixmap(128, 128));
connD->status->setText(explanation);
connD->title->setText("");
connD->buttonBox->setEnabled(true);
}
/*
int ConnectionLoader::getProgressFromStatus(QString status) {
if (status.startsWith("Loading block")) return 20;
if (status.startsWith("Verifying")) return 40;
if (status.startsWith("Loading Wallet")) return 60;
if (status.startsWith("Activating")) return 80;
if (status.startsWith("Rescanning")) return 90;
return 0;
}
*/
/**
* Try to automatically detect a zcash.conf file in the correct location and load parameters
*/
std::shared_ptr<ConnectionConfig*> ConnectionLoader::autoDetectZcashConf() {
std::shared_ptr<ConnectionConfig> ConnectionLoader::autoDetectZcashConf() {
#ifdef Q_OS_LINUX
auto confLocation = QStandardPaths::locate(QStandardPaths::HomeLocation, ".zcash/zcash.conf");
@@ -149,6 +190,9 @@ std::shared_ptr<ConnectionConfig*> ConnectionLoader::autoDetectZcashConf() {
auto zcashconf = new ConnectionConfig();
zcashconf->host = "127.0.0.1";
zcashconf->connType = ConnectionType::DetectedConfExternalZcashD;
zcashconf->usingZcashConf = true;
Settings::getInstance()->setUsingZcashConf(confLocation);
while (!in.atEnd()) {
QString line = in.readLine();
@@ -177,13 +221,13 @@ std::shared_ptr<ConnectionConfig*> ConnectionLoader::autoDetectZcashConf() {
file.close();
return std::make_shared<ConnectionConfig*>(zcashconf);
return std::shared_ptr<ConnectionConfig>(zcashconf);
}
/**
* Load connection settings from the UI, which indicates an unknown, external zcashd
*/
std::shared_ptr<ConnectionConfig*> ConnectionLoader::loadFromSettings() {
std::shared_ptr<ConnectionConfig> ConnectionLoader::loadFromSettings() {
// Load from the QT Settings.
QSettings s;
@@ -195,9 +239,9 @@ std::shared_ptr<ConnectionConfig*> ConnectionLoader::loadFromSettings() {
if (username.isEmpty() || password.isEmpty())
return nullptr;
auto uiConfig = new ConnectionConfig{ host, port, username, password, ConnectionType::UISettingsZCashD };
auto uiConfig = new ConnectionConfig{ host, port, username, password, false, ConnectionType::UISettingsZCashD };
return std::make_shared<ConnectionConfig*>(uiConfig);
return std::shared_ptr<ConnectionConfig>(uiConfig);
}
@@ -207,9 +251,10 @@ std::shared_ptr<ConnectionConfig*> ConnectionLoader::loadFromSettings() {
Connection::Connection(QNetworkAccessManager* c, QNetworkRequest* r) {
Connection::Connection(QNetworkAccessManager* c, QNetworkRequest* r, std::shared_ptr<ConnectionConfig> conf) {
this->restclient = c;
this->request = r;
this->request = r;
this->config = conf;
}
Connection::~Connection() {