httprequestworker.h

/*
Ref: http://www.creativepulse.gr/en/blog/2014/restful-api-requests-using-qt-cpp-for-linux-mac-osx-ms-windows
*/

#ifndef HTTPREQUESTWORKER_H
#define HTTPREQUESTWORKER_H


#include <QObject>
#include <QString>
#include <QMap>
#include <QtNetwork/QAuthenticator>
#include <QtNetwork/QNetworkAccessManager>
#include <QtNetwork/QNetworkReply>


enum HttpRequestVarLayout {NOT_SET, ADDRESS, URL_ENCODED, MULTIPART};


class HttpRequestInputFileElement {

public:
    QString variable_name;
    QString local_filename;
    QString request_filename;
    QString mime_type;

};


class HttpRequestInput {

public:
    QString url_str;
    QString http_method;
    HttpRequestVarLayout var_layout;
    QMap<QString, QString> vars;
    QList<HttpRequestInputFileElement> files;

    HttpRequestInput();
    HttpRequestInput(QString v_url_str, QString v_http_method);
    void initialize();
    void add_var(QString key, QString value);
    void add_file(QString variable_name, QString local_filename, QString request_filename, QString mime_type);

};


class HttpRequestWorker : public QObject {
    Q_OBJECT

public:
    QByteArray response;
    QNetworkReply::NetworkError error_type;
    QString error_str;

    explicit HttpRequestWorker(QObject *parent = 0);

    QString http_attribute_encode(QString attribute_name, QString input);
    void execute(HttpRequestInput *input);

signals:
    void on_execution_finished(HttpRequestWorker *worker);

private:
    QNetworkAccessManager *manager;

private slots:
    void on_manager_finished(QNetworkReply *reply);
    void provideAuthentication(QNetworkReply *reply, QAuthenticator *ator);
};

#endif // HTTPREQUESTWORKER_H