/****************************************************************************
**
** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the QtNetwork module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial Usage
** Licensees holding valid Qt Commercial licenses may use this file in
** accordance with the Qt Commercial License Agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Nokia.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file.  Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain additional
** rights.  These rights are described in the Nokia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3.0 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file.  Please review the following information to
** ensure the GNU General Public License version 3.0 requirements will be
** met: http://www.gnu.org/copyleft/gpl.html.
**
** If you have questions regarding the use of this file, please contact
** Nokia at qt-info@nokia.com.
** $QT_END_LICENSE$
**
****************************************************************************/

#ifndef QHTTP_H
#define QHTTP_H

#include <QObject>
#include <QStringList>
#include <QMap>
#include <QPair>
#include <QScopedPointer>
#include <qxtglobal.h>

QT_BEGIN_HEADER

QT_BEGIN_NAMESPACE

QT_MODULE(Network)

#ifndef QT_NO_HTTP

class QTcpSocket;
class QTimerEvent;
class QIODevice;
class QAuthenticator;
class QNetworkProxy;
class QSslError;

class QHttpPrivate;

class QHttpHeaderPrivate;
class QXT_WEB_EXPORT QHttpHeader
{
public:
    QHttpHeader();
    QHttpHeader(const QHttpHeader &header);
    QHttpHeader(const QString &str);
    virtual ~QHttpHeader();

    QHttpHeader &operator=(const QHttpHeader &h);

    void setValue(const QString &key, const QString &value);
    void setValues(const QList<QPair<QString, QString> > &values);
    void addValue(const QString &key, const QString &value);
    QList<QPair<QString, QString> > values() const;
    bool hasKey(const QString &key) const;
    QStringList keys() const;
    QString value(const QString &key) const;
    QStringList allValues(const QString &key) const;
    void removeValue(const QString &key);
    void removeAllValues(const QString &key);

    // ### Qt 5: change to qint64
    bool hasContentLength() const;
    uint contentLength() const;
    void setContentLength(int len);

    bool hasContentType() const;
    QString contentType() const;
    void setContentType(const QString &type);

    virtual QString toString() const;
    bool isValid() const;

    virtual int majorVersion() const = 0;
    virtual int minorVersion() const = 0;

protected:
    virtual bool parseLine(const QString &line, int number);
    bool parse(const QString &str);
    void setValid(bool);

    QHttpHeader(QHttpHeaderPrivate &dd, const QString &str = QString());
    QHttpHeader(QHttpHeaderPrivate &dd, const QHttpHeader &header);
    QScopedPointer<QHttpHeaderPrivate> d_ptr;

private:
    Q_DECLARE_PRIVATE(QHttpHeader)
};

class QHttpResponseHeaderPrivate;
class QXT_WEB_EXPORT QHttpResponseHeader : public QHttpHeader
{
public:
    QHttpResponseHeader();
    QHttpResponseHeader(const QHttpResponseHeader &header);
    QHttpResponseHeader(const QString &str);
    QHttpResponseHeader(int code, const QString &text = QString(), int majorVer = 1, int minorVer = 1);
    QHttpResponseHeader &operator=(const QHttpResponseHeader &header);

    void setStatusLine(int code, const QString &text = QString(), int majorVer = 1, int minorVer = 1);

    int statusCode() const;
    QString reasonPhrase() const;

    int majorVersion() const;
    int minorVersion() const;

    QString toString() const;

protected:
    bool parseLine(const QString &line, int number);

private:
    Q_DECLARE_PRIVATE(QHttpResponseHeader)
    friend class QHttpPrivate;
};

class QHttpRequestHeaderPrivate;
class QXT_WEB_EXPORT QHttpRequestHeader : public QHttpHeader
{
public:
    QHttpRequestHeader();
    QHttpRequestHeader(const QString &method, const QString &path, int majorVer = 1, int minorVer = 1);
    QHttpRequestHeader(const QHttpRequestHeader &header);
    QHttpRequestHeader(const QString &str);
    QHttpRequestHeader &operator=(const QHttpRequestHeader &header);

    void setRequest(const QString &method, const QString &path, int majorVer = 1, int minorVer = 1);

    QString method() const;
    QString path() const;

    int majorVersion() const;
    int minorVersion() const;

    QString toString() const;

protected:
    bool parseLine(const QString &line, int number);

private:
    Q_DECLARE_PRIVATE(QHttpRequestHeader)
};

#endif // QT_NO_HTTP

QT_END_NAMESPACE

QT_END_HEADER

#endif // QHTTP_H