source: trunk/src/network/access/qhttp.h@ 783

/****************************************************************************
**
** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation ([email protected])
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** This file is part of the QtNetwork module of the Qt Toolkit.
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** 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.
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** 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
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** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3.0 as published by the Free Software
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** packaging of this file.  Please review the following information to
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#ifndef QHTTP_H
#define QHTTP_H

#include <QtCore/qobject.h>
#include <QtCore/qstringlist.h>
#include <QtCore/qmap.h>
#include <QtCore/qpair.h>
#include <QtCore/qscopedpointer.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 Q_NETWORK_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 Q_NETWORK_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 Q_NETWORK_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)
};

class Q_NETWORK_EXPORT QHttp : public QObject
{
    Q_OBJECT

public:
    enum ConnectionMode {
        ConnectionModeHttp,
        ConnectionModeHttps
    };

    explicit QHttp(QObject *parent = 0);
    QHttp(const QString &hostname, quint16 port = 80, QObject *parent = 0);
    QHttp(const QString &hostname, ConnectionMode mode, quint16 port = 0, QObject *parent = 0);
    virtual ~QHttp();

    enum State {
        Unconnected,
        HostLookup,
        Connecting,
        Sending,
        Reading,
        Connected,
        Closing
    };
    enum Error {
        NoError,
        UnknownError,
        HostNotFound,
        ConnectionRefused,
        UnexpectedClose,
        InvalidResponseHeader,
        WrongContentLength,
        Aborted,