exam_timer_teacher/CPPWebFramework/cwf/response.h

/*
 Copyright 2017 Herik Lima de Castro and Marcelo Medeiros Eler
 Distributed under MIT license, or public domain if desired and
 recognized in your jurisdiction.
 See file LICENSE for detail.
*/

#ifndef RESPONSE_H
#define RESPONSE_H

#include <QFile>
#include <QJsonDocument>
#include <QNetworkCookie>
#include <QTcpSocket>
#include <QTextStream>
#include "constants.h"
#include "cppwebframework_global.h"

CWF_BEGIN_NAMESPACE

class Configuration;
/**
 * @brief The Response class is responsable to response a Http request.
 */
class CPPWEBFRAMEWORKSHARED_EXPORT Response
{
    QTcpSocket &socket;
    const Configuration &configuration;
    int statusCode = Response::SC_OK;
    QByteArray content;
    QByteArray statusText = HTTP::OK;
    QMap<QByteArray, QByteArray> headers;
    QVector<QNetworkCookie> cookies;

public:
    Response(QTcpSocket &socket, const Configuration &configuration);

    ~Response() noexcept {}

    void write(const QJsonObject &json, bool writeContentType = true);

    void write(const QJsonArray &array, bool writeContentType = true);

    void write(QByteArray &&data);

    void write(const QByteArray &data, bool flush = true);

    void sendError(int sc, const QByteArray &msg);
    void sendJsonError(int sc, const QByteArray &msg);

    void flushBuffer();

    inline int getBufferSize() const noexcept { return content.size(); }
    inline QByteArray getBuffer() const noexcept { return content; }

    inline void addHeader(const QByteArray &name, const QByteArray &value) noexcept
    {
        headers.insert(name, value);
    }

    inline void addCookie(const QNetworkCookie &cookie) noexcept { cookies.push_back(cookie); }

    void setStatus(int statusCode, const QByteArray &description);

    void sendRedirect(const QByteArray &url);

    enum {
        SC_CONTINUE = 100,
        SC_SWITCHING_PROTOCOLS = 101,

        SC_OK = 200,
        SC_CREATED = 201,
        SC_ACCEPTED = 202,
        SC_NON_AUTHORITATIVE_INFORMATION = 203,
        SC_NO_CONTENT = 204,
        SC_RESET_CONTENT = 205,
        SC_PARTIAL_CONTENT = 206,
        SC_MULTIPLE_CHOICES = 300,
        SC_MOVED_PERMANENTLY = 301,
        SC_MOVED_TEMPORARILY = 302,
        SC_FOUND = 302,
        SC_SEE_OTHER = 303,
        SC_NOT_MODIFIED = 304,
        SC_USE_PROXY = 305,
        SC_TEMPORARY_REDIRECT = 307,
        SC_BAD_REQUEST = 400,
        SC_UNAUTHORIZED = 401,
        SC_PAYMENT_REQUIRED = 402,
        SC_FORBIDDEN = 403,
        SC_NOT_FOUND = 404,
        SC_METHOD_NOT_ALLOWED = 405,
        SC_NOT_ACCEPTABLE = 406,
        SC_PROXY_AUTHENTICATION_REQUIRED = 407,
        SC_REQUEST_TIMEOUT = 408,
        SC_CONFLICT = 409,
        SC_GONE = 410,
        SC_LENGTH_REQUIRED = 411,
        SC_PRECONDITION_FAILED = 412,
        SC_REQUEST_ENTITY_TOO_LARGE = 413,
        SC_REQUEST_URI_TOO_LONG = 414,
        SC_UNSUPPORTED_MEDIA_TYPE = 415,
        SC_REQUESTED_RANGE_NOT_SATISFIABLE = 416,
        SC_EXPECTATION_FAILED = 417,
        SC_INTERNAL_SERVER_ERROR = 500,
        SC_NOT_IMPLEMENTED = 501,
        SC_BAD_GATEWAY = 502,
        SC_SERVICE_UNAVAILABLE = 503,
        SC_GATEWAY_TIMEOUT = 504,
        SC_HTTP_VERSION_NOT_SUPPORTED = 505
    };
};

CWF_END_NAMESPACE

#endif // RESPONSE_H