Co-Authored-By: selsta <selsta@sent.at> Co-Authored-By: Gene Peters <gene@telligent-data.com>pull/2/head
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// Copyright (c) 2014-2019, The Monero Project
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//
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// All rights reserved.
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//
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// Redistribution and use in source and binary forms, with or without modification, are
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// permitted provided that the following conditions are met:
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//
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// 1. Redistributions of source code must retain the above copyright notice, this list of
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// conditions and the following disclaimer.
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//
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// 2. Redistributions in binary form must reproduce the above copyright notice, this list
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// of conditions and the following disclaimer in the documentation and/or other
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// materials provided with the distribution.
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//
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// 3. Neither the name of the copyright holder nor the names of its contributors may be
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// used to endorse or promote products derived from this software without specific
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// prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
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// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
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// THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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// STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
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// THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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#include <QtCore>
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#include <QNetworkAccessManager>
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#include "utils.h"
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#include "prices.h"
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Prices::Prices(QNetworkAccessManager *networkAccessManager, QObject *parent)
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: QObject(parent) {
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this->m_networkAccessManager = networkAccessManager;
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}
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void Prices::getJSON(const QString url) {
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qDebug() << QString("Fetching: %1").arg(url);
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QNetworkRequest request;
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request.setUrl(QUrl(url));
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request.setRawHeader("User-Agent", randomUserAgent().toUtf8());
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request.setRawHeader("Content-Type", "application/json");
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m_reply = this->m_networkAccessManager->get(request);
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connect(m_reply, SIGNAL(finished()), this, SLOT(gotJSON()));
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}
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void Prices::gotJSON() {
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// Check connectivity
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if (!m_reply || m_reply->error() != QNetworkReply::NoError){
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this->gotError();
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m_reply->deleteLater();
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return;
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}
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// Check json header
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QList<QByteArray> headerList = m_reply->rawHeaderList();
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QByteArray headerJson = m_reply->rawHeader("Content-Type");
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if(headerJson.length() <= 15){
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this->gotError("Bad Content-Type");
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m_reply->deleteLater();
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return;
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}
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QString headerJsonStr = QTextCodec::codecForMib(106)->toUnicode(headerJson);
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int _contentType = headerList.indexOf("Content-Type");
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if (_contentType < 0 || !headerJsonStr.startsWith("application/json")){
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this->gotError("Bad Content-Type");
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m_reply->deleteLater();
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return;
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}
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// Check valid json document
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QByteArray data = m_reply->readAll();
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QJsonDocument doc = QJsonDocument::fromJson(data);
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QString jsonString = doc.toJson(QJsonDocument::Indented);
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if (jsonString.isEmpty()){
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this->gotError("Bad JSON");
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m_reply->deleteLater();
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return;
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}
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// Insert source url for later reference
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QUrl url = m_reply->url();
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QJsonObject docobj = doc.object();
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docobj["_url"] = url.toString();
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doc.setObject(docobj);
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qDebug() << QString("Fetched: %1").arg(url.toString());
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// Emit signal
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QVariantMap vMap = doc.object().toVariantMap();
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emit priceJsonReceived(vMap);
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m_reply->deleteLater();
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}
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void Prices::gotError() {
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this->gotError("Unknown error");
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}
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void Prices::gotError(const QString &message) {
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qCritical() << __FUNCTION__ << ": Error: " << message;
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emit priceJsonError(message);
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}
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@ -0,0 +1,30 @@
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#ifndef PRICES_H
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#define PRICES_H
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#include <QCoreApplication>
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#include <QtNetwork>
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#include <QNetworkAccessManager>
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#include <QNetworkReply>
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#include <QDebug>
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class Prices : public QObject
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{
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Q_OBJECT
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public:
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Prices(QNetworkAccessManager *networkAccessManager, QObject *parent = nullptr);
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public slots:
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Q_INVOKABLE void getJSON(const QString url);
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void gotJSON();
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void gotError();
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void gotError(const QString &message);
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signals:
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void priceJsonReceived(QVariantMap document);
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void priceJsonError(QString message);
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private:
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mutable QPointer<QNetworkReply> m_reply;
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QNetworkAccessManager *m_networkAccessManager;
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};
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#endif // PRICES_H
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