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// Copyright (c) 2014-2019, The Monero Project
//
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without modification, are
// permitted provided that the following conditions are met:
//
// 1. Redistributions of source code must retain the above copyright notice, this list of
// conditions and the following disclaimer.
//
// 2. Redistributions in binary form must reproduce the above copyright notice, this list
// of conditions and the following disclaimer in the documentation and/or other
// materials provided with the distribution.
//
// 3. Neither the name of the copyright holder nor the names of its contributors may be
// used to endorse or promote products derived from this software without specific
// prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
// THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
// STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
// THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#include <QtCore>
#include <QNetworkAccessManager>
#include "utils.h"
#include "prices.h"
Prices::Prices(QNetworkAccessManager *networkAccessManager, QObject *parent)
: QObject(parent) {
this->m_networkAccessManager = networkAccessManager;
}
void Prices::getJSON(const QString url) {
qDebug() << QString("Fetching: %1").arg(url);
QNetworkRequest request;
request.setUrl(QUrl(url));
request.setRawHeader("User-Agent", randomUserAgent().toUtf8());
request.setRawHeader("Content-Type", "application/json");
m_reply = this->m_networkAccessManager->get(request);
connect(m_reply, SIGNAL(finished()), this, SLOT(gotJSON()));
}
void Prices::gotJSON() {
// Check connectivity
if (!m_reply || m_reply->error() != QNetworkReply::NoError){
this->gotError();
m_reply->deleteLater();
return;
}
// Check json header
QList<QByteArray> headerList = m_reply->rawHeaderList();
QByteArray headerJson = m_reply->rawHeader("Content-Type");
if(headerJson.length() <= 15){
this->gotError("Bad Content-Type");
m_reply->deleteLater();
return;
}
QString headerJsonStr = QTextCodec::codecForMib(106)->toUnicode(headerJson);
int _contentType = headerList.indexOf("Content-Type");
if (_contentType < 0 || !headerJsonStr.startsWith("application/json")){
this->gotError("Bad Content-Type");
m_reply->deleteLater();
return;
}
// Check valid json document
QByteArray data = m_reply->readAll();
QJsonDocument doc = QJsonDocument::fromJson(data);
QString jsonString = doc.toJson(QJsonDocument::Indented);
if (jsonString.isEmpty()){
this->gotError("Bad JSON");
m_reply->deleteLater();
return;
}
// Insert source url for later reference
QUrl url = m_reply->url();
QJsonObject docobj = doc.object();
docobj["_url"] = url.toString();
doc.setObject(docobj);
qDebug() << QString("Fetched: %1").arg(url.toString());
// Emit signal
QVariantMap vMap = doc.object().toVariantMap();
emit priceJsonReceived(vMap);
m_reply->deleteLater();
}
void Prices::gotError() {
this->gotError("Unknown error");
}
void Prices::gotError(const QString &message) {
qCritical() << __FUNCTION__ << ": Error: " << message;
emit priceJsonError(message);
}
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