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/****************************************************************************
**
** Copyright (C) 2011 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.
**
** $QT_BEGIN_LICENSE:LGPL$
** GNU Lesser General Public License Usage
** 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.
**
** Other Usage
** Alternatively, this file may be used in accordance with the terms and
** conditions contained in a signed written agreement between you and Nokia.
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
//#define QHTTP_DEBUG
#include <qplatformdefs.h>
#include "qhttp.h"
#ifndef QT_NO_HTTP
# include "private/qobject_p.h"
# include "qtcpsocket.h"
# include "qsslsocket.h"
# include "qtextstream.h"
# include "qmap.h"
# include "qlist.h"
# include "qstring.h"
# include "qstringlist.h"
# include "qbuffer.h"
# include "private/qringbuffer_p.h"
# include "qcoreevent.h"
# include "qurl.h"
# include "qnetworkproxy.h"
# include "qauthenticator.h"
# include "qauthenticator_p.h"
# include "qdebug.h"
# include "qtimer.h"
#endif
#ifndef QT_NO_HTTP
QT_BEGIN_NAMESPACE
class QHttpNormalRequest;
class QHttpRequest
{
public:
QHttpRequest() : finished(false)
{ id = idCounter.fetchAndAddRelaxed(1); }
virtual ~QHttpRequest()
{ }
virtual void start(QHttp *) = 0;
virtual bool hasRequestHeader();
virtual QHttpRequestHeader requestHeader();
virtual QIODevice *sourceDevice() = 0;
virtual QIODevice *destinationDevice() = 0;
int id;
bool finished;
private:
static QBasicAtomicInt idCounter;
};
class QHttpPrivate : public QObjectPrivate
{
public:
Q_DECLARE_PUBLIC(QHttp)
inline QHttpPrivate()
: socket(0), reconnectAttempts(2),
deleteSocket(0), state(QHttp::Unconnected),
error(QHttp::NoError), port(0), mode(QHttp::ConnectionModeHttp),
toDevice(0), postDevice(0), bytesDone(0), chunkedSize(-1),
repost(false), pendingPost(false)
{
}
inline ~QHttpPrivate()
{
while (!pending.isEmpty())
delete pending.takeFirst();
if (deleteSocket)
delete socket;
}
// private slots
void _q_startNextRequest();
void _q_slotReadyRead();
void _q_slotConnected();
void _q_slotError(QAbstractSocket::SocketError);
void _q_slotClosed();
void _q_slotBytesWritten(qint64 numBytes);
#ifndef QT_NO_OPENSSL
void _q_slotEncryptedBytesWritten(qint64 numBytes);
#endif
void _q_slotDoFinished();
void _q_slotSendRequest();
void _q_continuePost();
int addRequest(QHttpNormalRequest *);
int addRequest(QHttpRequest *);
void finishedWithSuccess();
void finishedWithError(const QString &detail, int errorCode);
void init();
void setState(int);
void closeConn();
void setSock(QTcpSocket *sock);
void postMoreData();
QTcpSocket *socket;
int reconnectAttempts;
bool deleteSocket;
QList<QHttpRequest *> pending;
QHttp::State state;
QHttp::Error error;
QString errorString;
QString hostName;
quint16 port;
QHttp::ConnectionMode mode;
QByteArray buffer;
QIODevice *toDevice;
QIODevice *postDevice;
qint64 bytesDone;
qint64 bytesTotal;
qint64 chunkedSize;
QHttpRequestHeader header;
bool readHeader;
QString headerStr;
QHttpResponseHeader response;
QRingBuffer rba;
#ifndef QT_NO_NETWORKPROXY
QNetworkProxy proxy;
QAuthenticator proxyAuthenticator;
#endif
QAuthenticator authenticator;
bool repost;
bool hasFinishedWithError;
bool pendingPost;
QTimer post100ContinueTimer;
};
QBasicAtomicInt QHttpRequest::idCounter = Q_BASIC_ATOMIC_INITIALIZER(1);
bool QHttpRequest::hasRequestHeader()
{
return false;
}
QHttpRequestHeader QHttpRequest::requestHeader()
{
return QHttpRequestHeader();
}
/****************************************************
*
* QHttpNormalRequest
*
****************************************************/
class QHttpNormalRequest : public QHttpRequest
{
public:
QHttpNormalRequest(const QHttpRequestHeader &h, QIODevice *d, QIODevice *t) :
header(h), to(t)
{
is_ba = false;
data.dev = d;
}
QHttpNormalRequest(const QHttpRequestHeader &h, QByteArray *d, QIODevice *t) :
header(h), to(t)
{
is_ba = true;
data.ba = d;
}
~QHttpNormalRequest()
{
if (is_ba)
delete data.ba;
}
void start(QHttp *);
bool hasRequestHeader();
QHttpRequestHeader requestHeader();
inline void setRequestHeader(const QHttpRequestHeader &h) { header = h; }
QIODevice *sourceDevice();
QIODevice *destinationDevice();
protected:
QHttpRequestHeader header;
private:
union {
QByteArray *ba;
QIODevice *dev;
} data;
bool is_ba;
QIODevice *to;
};
void QHttpNormalRequest::start(QHttp *http)
{
if (!http->d_func()->socket)
http->d_func()->setSock(0);
http->d_func()->header = header;
if (is_ba) {
http->d_func()->buffer = *data.ba;
if (http->d_func()->buffer.size() >= 0)
http->d_func()->header.setContentLength(http->d_func()->buffer.size());
http->d_func()->postDevice = 0;
} else {
http->d_func()->buffer = QByteArray();
if (data.dev && (data.dev->isOpen() || data.dev->open(QIODevice::ReadOnly))) {
http->d_func()->postDevice = data.dev;
if (http->d_func()->postDevice->size() >= 0)
http->d_func()->header.setContentLength(http->d_func()->postDevice->size());
} else {
http->d_func()->postDevice = 0;
}
}
if (to && (to->isOpen() || to->open(QIODevice::WriteOnly)))
http->d_func()->toDevice = to;
else
http->d_func()->toDevice = 0;
http->d_func()->reconnectAttempts = 2;
http->d_func()->_q_slotSendRequest();
}
bool QHttpNormalRequest::hasRequestHeader()
{
return true;
}
QHttpRequestHeader QHttpNormalRequest::requestHeader()
{
return header;
}
QIODevice *QHttpNormalRequest::sourceDevice()
{
if (is_ba)
return 0;
return data.dev;
}
QIODevice *QHttpNormalRequest::destinationDevice()
{
return to;
}
/****************************************************
*
* QHttpPGHRequest
* (like a QHttpNormalRequest, but for the convenience
* functions put(), get() and head() -- i.e. set the
* host header field correctly before sending the
* request)
*
****************************************************/
class QHttpPGHRequest : public QHttpNormalRequest
{
public:
QHttpPGHRequest(const QHttpRequestHeader &h, QIODevice *d, QIODevice *t) :
QHttpNormalRequest(h, d, t)
{ }
QHttpPGHRequest(const QHttpRequestHeader &h, QByteArray *d, QIODevice *t) :
QHttpNormalRequest(h, d, t)
{ }
~QHttpPGHRequest()
{ }
void start(QHttp *);
};
void QHttpPGHRequest::start(QHttp *http)
{
if (http->d_func()->port && http->d_func()->port != 80)
header.setValue(QLatin1String("Host"), http->d_func()->hostName + QLatin1Char(':') + QString::number(http->d_func()->port));
else
header.setValue(QLatin1String("Host"), http->d_func()->hostName);
QHttpNormalRequest::start(http);
}
/****************************************************
*
* QHttpSetHostRequest
*
****************************************************/
class QHttpSetHostRequest : public QHttpRequest
{
public:
QHttpSetHostRequest(const QString &h, quint16 p, QHttp::ConnectionMode m)
: hostName(h), port(p), mode(m)
{ }
void start(QHttp *);
QIODevice *sourceDevice()
{ return 0; }
QIODevice *destinationDevice()
{ return 0; }
private:
QString hostName;
quint16 port;
QHttp::ConnectionMode mode;
};
void QHttpSetHostRequest::start(QHttp *http)
{
http->d_func()->hostName = hostName;
http->d_func()->port = port;
http->d_func()->mode = mode;
#ifdef QT_NO_OPENSSL
if (mode == QHttp::ConnectionModeHttps) {
// SSL requested but no SSL support compiled in
http->d_func()->finishedWithError(QLatin1String(QT_TRANSLATE_NOOP("QHttp", "HTTPS connection requested but SSL support not compiled in")),
QHttp::UnknownError);
return;
}
#endif
http->d_func()->finishedWithSuccess();
}
/****************************************************
*
* QHttpSetUserRequest
*
****************************************************/
class QHttpSetUserRequest : public QHttpRequest
{
public:
QHttpSetUserRequest(const QString &userName, const QString &password) :
user(userName), pass(password)
{ }
void start(QHttp *);
QIODevice *sourceDevice()
{ return 0; }
QIODevice *destinationDevice()
{ return 0; }
private:
QString user;
QString pass;
};
void QHttpSetUserRequest::start(QHttp *http)
{
http->d_func()->authenticator.setUser(user);
http->d_func()->authenticator.setPassword(pass);
http->d_func()->finishedWithSuccess();
}
#ifndef QT_NO_NETWORKPROXY
/****************************************************
*
* QHttpSetProxyRequest
*
****************************************************/
class QHttpSetProxyRequest : public QHttpRequest
{
public:
inline QHttpSetProxyRequest(const QNetworkProxy &proxy)
{
this->proxy = proxy;
}
inline void start(QHttp *http)
{
http->d_func()->proxy = proxy;
QString user = proxy.user();
if (!user.isEmpty())
http->d_func()->proxyAuthenticator.setUser(user);
QString password = proxy.password();
if (!password.isEmpty())
http->d_func()->proxyAuthenticator.setPassword(password);
http->d_func()->finishedWithSuccess();
}
inline QIODevice *sourceDevice()
{ return 0; }
inline QIODevice *destinationDevice()
{ return 0; }
private:
QNetworkProxy proxy;
};
#endif // QT_NO_NETWORKPROXY
/****************************************************
*
* QHttpSetSocketRequest
*
****************************************************/
class QHttpSetSocketRequest : public QHttpRequest
{
public:
QHttpSetSocketRequest(QTcpSocket *s) : socket(s)
{ }
void start(QHttp *);
QIODevice *sourceDevice()
{ return 0; }
QIODevice *destinationDevice()
{ return 0; }
private:
QTcpSocket *socket;
};
void QHttpSetSocketRequest::start(QHttp *http)
{
http->d_func()->setSock(socket);
http->d_func()->finishedWithSuccess();
}
/****************************************************
*
* QHttpCloseRequest
*
****************************************************/
class QHttpCloseRequest : public QHttpRequest
{
public:
QHttpCloseRequest()
{ }
void start(QHttp *);
QIODevice *sourceDevice()
{ return 0; }
QIODevice *destinationDevice()
{ return 0; }
};
void QHttpCloseRequest::start(QHttp *http)
{
http->d_func()->closeConn();
}
class QHttpHeaderPrivate
{
Q_DECLARE_PUBLIC(QHttpHeader)
public:
inline virtual ~QHttpHeaderPrivate() {}
QList<QPair<QString, QString> > values;
bool valid;
QHttpHeader *q_ptr;
};
/****************************************************
*
* QHttpHeader
*
****************************************************/
/*!
\class QHttpHeader
\obsolete
\brief The QHttpHeader class contains header information for HTTP.
\ingroup network
\inmodule QtNetwork
In most cases you should use the more specialized derivatives of
this class, QHttpResponseHeader and QHttpRequestHeader, rather
than directly using QHttpHeader.
QHttpHeader provides the HTTP header fields. A HTTP header field
consists of a name followed by a colon, a single space, and the
field value. (See RFC 1945.) Field names are case-insensitive. A
typical header field looks like this:
\snippet doc/src/snippets/code/src_network_access_qhttp.cpp 0
In the API the header field name is called the "key" and the
content is called the "value". You can get and set a header
field's value by using its key with value() and setValue(), e.g.
\snippet doc/src/snippets/code/src_network_access_qhttp.cpp 1
Some fields are so common that getters and setters are provided
for them as a convenient alternative to using \l value() and
\l setValue(), e.g. contentLength() and contentType(),
setContentLength() and setContentType().
Each header key has a \e single value associated with it. If you
set the value for a key which already exists the previous value
will be discarded.
\sa QHttpRequestHeader QHttpResponseHeader
*/
/*!
\fn int QHttpHeader::majorVersion() const
Returns the major protocol-version of the HTTP header.
*/
/*!
\fn int QHttpHeader::minorVersion() const
Returns the minor protocol-version of the HTTP header.
*/
/*!
Constructs an empty HTTP header.
*/
QHttpHeader::QHttpHeader()
: d_ptr(new QHttpHeaderPrivate)
{
Q_D(QHttpHeader);
d->q_ptr = this;
d->valid = true;
}
/*!
Constructs a copy of \a header.
*/
QHttpHeader::QHttpHeader(const QHttpHeader &header)
: d_ptr(new QHttpHeaderPrivate)
{
Q_D(QHttpHeader);
d->q_ptr = this;
d->valid = header.d_func()->valid;
d->values = header.d_func()->values;
}
/*!
Constructs a HTTP header for \a str.
This constructor parses the string \a str for header fields and
adds this information. The \a str should consist of one or more
"\r\n" delimited lines; each of these lines should have the format
key, colon, space, value.
*/
QHttpHeader::QHttpHeader(const QString &str)
: d_ptr(new QHttpHeaderPrivate)
{
Q_D(QHttpHeader);
d->q_ptr = this;
d->valid = true;
parse(str);
}
/*! \internal
*/
QHttpHeader::QHttpHeader(QHttpHeaderPrivate &dd, const QString &str)
: d_ptr(&dd)
{
Q_D(QHttpHeader);
d->q_ptr = this;
d->valid = true;
if (!str.isEmpty())
parse(str);
}
/*! \internal
*/
QHttpHeader::QHttpHeader(QHttpHeaderPrivate &dd, const QHttpHeader &header)
: d_ptr(&dd)
{
Q_D(QHttpHeader);
d->q_ptr = this;
d->valid = header.d_func()->valid;
d->values = header.d_func()->values;
}
/*!
Destructor.
*/
QHttpHeader::~QHttpHeader()
{
}
/*!
Assigns \a h and returns a reference to this http header.
*/
QHttpHeader &QHttpHeader::operator=(const QHttpHeader &h)
{
Q_D(QHttpHeader);
d->values = h.d_func()->values;
d->valid = h.d_func()->valid;
return *this;
}
/*!
Returns true if the HTTP header is valid; otherwise returns false.
A QHttpHeader is invalid if it was created by parsing a malformed string.
*/
bool QHttpHeader::isValid() const
{
Q_D(const QHttpHeader);
return d->valid;
}
/*! \internal
Parses the HTTP header string \a str for header fields and adds
the keys/values it finds. If the string is not parsed successfully
the QHttpHeader becomes \link isValid() invalid\endlink.
Returns true if \a str was successfully parsed; otherwise returns false.
\sa toString()
*/
bool QHttpHeader::parse(const QString &str)
{
Q_D(QHttpHeader);
QStringList lst;
int pos = str.indexOf(QLatin1Char('\n'));
if (pos > 0 && str.at(pos - 1) == QLatin1Char('\r'))
lst = str.trimmed().split(QLatin1String("\r\n"));
else
lst = str.trimmed().split(QLatin1String("\n"));
lst.removeAll(QString()); // No empties
if (lst.isEmpty())
return true;
QStringList lines;
QStringList::Iterator it = lst.begin();
for (; it != lst.end(); ++it) {
if (!(*it).isEmpty()) {
if ((*it)[0].isSpace()) {
if (!lines.isEmpty()) {
lines.last() += QLatin1Char(' ');
lines.last() += (*it).trimmed();
}
} else {
lines.append((*it));
}
}
}
int number = 0;
it = lines.begin();
for (; it != lines.end(); ++it) {
if (!parseLine(*it, number++)) {
d->valid = false;
return false;
}
}
return true;
}
/*! \internal
*/
void QHttpHeader::setValid(bool v)
{
Q_D(QHttpHeader);
d->valid = v;
}
/*!
Returns the first value for the entry with the given \a key. If no entry
has this \a key, an empty string is returned.
\sa setValue() removeValue() hasKey() keys()
*/
QString QHttpHeader::value(const QString &key) const
{
Q_D(const QHttpHeader);
QString lowercaseKey = key.toLower();
QList<QPair<QString, QString> >::ConstIterator it = d->values.constBegin();
while (it != d->values.constEnd()) {
if ((*it).first.toLower() == lowercaseKey)
return (*it).second;
++it;
}
return QString();
}
/*!
Returns all the entries with the given \a key. If no entry
has this \a key, an empty string list is returned.
*/
QStringList QHttpHeader::allValues(const QString &key) const
{
Q_D(const QHttpHeader);
QString lowercaseKey = key.toLower();
QStringList valueList;
QList<QPair<QString, QString> >::ConstIterator it = d->values.constBegin();
while (it != d->values.constEnd()) {
if ((*it).first.toLower() == lowercaseKey)
valueList.append((*it).second);
++it;
}
return valueList;
}
/*!
Returns a list of the keys in the HTTP header.
\sa hasKey()
*/
QStringList QHttpHeader::keys() const
{
Q_D(const QHttpHeader);
QStringList keyList;
QSet<QString> seenKeys;
QList<QPair<QString, QString> >::ConstIterator it = d->values.constBegin();
while (it != d->values.constEnd()) {
const QString &key = (*it).first;
QString lowercaseKey = key.toLower();
if (!seenKeys.contains(lowercaseKey)) {
keyList.append(key);
seenKeys.insert(lowercaseKey);
}
++it;
}
return keyList;
}
/*!
Returns true if the HTTP header has an entry with the given \a
key; otherwise returns false.
\sa value() setValue() keys()
*/
bool QHttpHeader::hasKey(const QString &key) const
{
Q_D(const QHttpHeader);
QString lowercaseKey = key.toLower();
QList<QPair<QString, QString> >::ConstIterator it = d->values.constBegin();
while (it != d->values.constEnd()) {
if ((*it).first.toLower() == lowercaseKey)
return true;
++it;
}
return false;
}
/*!
Sets the value of the entry with the \a key to \a value.
If no entry with \a key exists, a new entry with the given \a key
and \a value is created. If an entry with the \a key already
exists, the first value is discarded and replaced with the given
\a value.
\sa value() hasKey() removeValue()
*/
void QHttpHeader::setValue(const QString &key, const QString &value)
{
Q_D(QHttpHeader);
QString lowercaseKey = key.toLower();
QList<QPair<QString, QString> >::Iterator it = d->values.begin();
while (it != d->values.end()) {
if ((*it).first.toLower() == lowercaseKey) {
(*it).second = value;
return;
}
++it;
}
// not found so add
addValue(key, value);
}
/*!
Sets the header entries to be the list of key value pairs in \a values.
*/
void QHttpHeader::setValues(const QList<QPair<QString, QString> > &values)
{
Q_D(QHttpHeader);
d->values = values;
}
/*!
Adds a new entry with the \a key and \a value.
*/
void QHttpHeader::addValue(const QString &key, const QString &value)
{
Q_D(QHttpHeader);
d->values.append(qMakePair(key, value));
}
/*!
Returns all the entries in the header.
*/
QList<QPair<QString, QString> > QHttpHeader::values() const
{
Q_D(const QHttpHeader);
return d->values;
}
/*!
Removes the entry with the key \a key from the HTTP header.
\sa value() setValue()
*/
void QHttpHeader::removeValue(const QString &key)
{
Q_D(QHttpHeader);
QString lowercaseKey = key.toLower();
QList<QPair<QString, QString> >::Iterator it = d->values.begin();
while (it != d->values.end()) {
if ((*it).first.toLower() == lowercaseKey) {
d->values.erase(it);
return;
}
++it;
}
}
/*!
Removes all the entries with the key \a key from the HTTP header.
*/
void QHttpHeader::removeAllValues(const QString &key)
{
Q_D(QHttpHeader);
QString lowercaseKey = key.toLower();
QList<QPair<QString, QString> >::Iterator it = d->values.begin();
while (it != d->values.end()) {
if ((*it).first.toLower() == lowercaseKey) {
it = d->values.erase(it);
continue;
}
++it;
}
}
/*! \internal
Parses the single HTTP header line \a line which has the format
key, colon, space, value, and adds key/value to the headers. The
linenumber is \a number. Returns true if the line was successfully
parsed and the key/value added; otherwise returns false.
\sa parse()
*/
bool QHttpHeader::parseLine(const QString &line, int)
{
int i = line.indexOf(QLatin1Char(':'));
if (i == -1)
return false;
addValue(line.left(i).trimmed(), line.mid(i + 1).trimmed());
return true;
}
/*!
Returns a string representation of the HTTP header.
The string is suitable for use by the constructor that takes a
QString. It consists of lines with the format: key, colon, space,
value, "\r\n".
*/
QString QHttpHeader::toString() const
{
Q_D(const QHttpHeader);
if (!isValid())
return QLatin1String("");
QString ret = QLatin1String("");
QList<QPair<QString, QString> >::ConstIterator it = d->values.constBegin();
while (it != d->values.constEnd()) {
ret += (*it).first + QLatin1String(": ") + (*it).second + QLatin1String("\r\n");
++it;
}
return ret;
}
/*!
Returns true if the header has an entry for the special HTTP
header field \c content-length; otherwise returns false.
\sa contentLength() setContentLength()
*/
bool QHttpHeader::hasContentLength() const
{
return hasKey(QLatin1String("content-length"));
}
/*!
Returns the value of the special HTTP header field \c
content-length.
\sa setContentLength() hasContentLength()
*/
uint QHttpHeader::contentLength() const
{
return value(QLatin1String("content-length")).toUInt();
}
/*!
Sets the value of the special HTTP header field \c content-length
to \a len.
\sa contentLength() hasContentLength()
*/
void QHttpHeader::setContentLength(int len)
{
setValue(QLatin1String("content-length"), QString::number(len));
}
/*!
Returns true if the header has an entry for the special HTTP
header field \c content-type; otherwise returns false.
\sa contentType() setContentType()
*/
bool QHttpHeader::hasContentType() const
{
return hasKey(QLatin1String("content-type"));
}
/*!
Returns the value of the special HTTP header field \c content-type.
\sa setContentType() hasContentType()
*/
QString QHttpHeader::contentType() const
{
QString type = value(QLatin1String("content-type"));
if (type.isEmpty())
return QString();
int pos = type.indexOf(QLatin1Char(';'));
if (pos == -1)
return type;
return type.left(pos).trimmed();
}
/*!
Sets the value of the special HTTP header field \c content-type to
\a type.
\sa contentType() hasContentType()
*/
void QHttpHeader::setContentType(const QString &type)
{
setValue(QLatin1String("content-type"), type);
}
class QHttpResponseHeaderPrivate : public QHttpHeaderPrivate
{
Q_DECLARE_PUBLIC(QHttpResponseHeader)
public:
int statCode;
QString reasonPhr;
int majVer;
int minVer;
};
/****************************************************
*
* QHttpResponseHeader
*
****************************************************/
/*!
\class QHttpResponseHeader
\obsolete
\brief The QHttpResponseHeader class contains response header information for HTTP.
\ingroup network
\inmodule QtNetwork
This class is used by the QHttp class to report the header
information that the client received from the server.
HTTP responses have a status code that indicates the status of the
response. This code is a 3-digit integer result code (for details
see to RFC 1945). In addition to the status code, you can also
specify a human-readable text that describes the reason for the
code ("reason phrase"). This class allows you to get the status
code and the reason phrase.
\sa QHttpRequestHeader, QHttp, {HTTP Example}
*/
/*!
Constructs an empty HTTP response header.
*/
QHttpResponseHeader::QHttpResponseHeader()
: QHttpHeader(*new QHttpResponseHeaderPrivate)
{
setValid(false);
}
/*!
Constructs a copy of \a header.
*/
QHttpResponseHeader::QHttpResponseHeader(const QHttpResponseHeader &header)
: QHttpHeader(*new QHttpResponseHeaderPrivate, header)
{
Q_D(QHttpResponseHeader);
d->statCode = header.d_func()->statCode;
d->reasonPhr = header.d_func()->reasonPhr;
d->majVer = header.d_func()->majVer;
d->minVer = header.d_func()->minVer;
}
/*!
Copies the contents of \a header into this QHttpResponseHeader.
*/
QHttpResponseHeader &QHttpResponseHeader::operator=(const QHttpResponseHeader &header)
{
Q_D(QHttpResponseHeader);
QHttpHeader::operator=(header);
d->statCode = header.d_func()->statCode;
d->reasonPhr = header.d_func()->reasonPhr;
d->majVer = header.d_func()->majVer;
d->minVer = header.d_func()->minVer;
return *this;
}
/*!
Constructs a HTTP response header from the string \a str. The
string is parsed and the information is set. The \a str should
consist of one or more "\r\n" delimited lines; the first line should be the
status-line (format: HTTP-version, space, status-code, space,
reason-phrase); each of remaining lines should have the format key, colon,
space, value.
*/
QHttpResponseHeader::QHttpResponseHeader(const QString &str)
: QHttpHeader(*new QHttpResponseHeaderPrivate)
{
parse(str);
}
/*!
\since 4.1
Constructs a QHttpResponseHeader, setting the status code to \a code, the
reason phrase to \a text and the protocol-version to \a majorVer and \a
minorVer.
\sa statusCode() reasonPhrase() majorVersion() minorVersion()
*/
QHttpResponseHeader::QHttpResponseHeader(int code, const QString &text, int majorVer, int minorVer)
: QHttpHeader(*new QHttpResponseHeaderPrivate)
{
setStatusLine(code, text, majorVer, minorVer);
}
/*!
\since 4.1
Sets the status code to \a code, the reason phrase to \a text and
the protocol-version to \a majorVer and \a minorVer.
\sa statusCode() reasonPhrase() majorVersion() minorVersion()
*/
void QHttpResponseHeader::setStatusLine(int code, const QString &text, int majorVer, int minorVer)
{
Q_D(QHttpResponseHeader);
setValid(true);
d->statCode = code;
d->reasonPhr = text;
d->majVer = majorVer;
d->minVer = minorVer;
}
/*!
Returns the status code of the HTTP response header.
\sa reasonPhrase() majorVersion() minorVersion()
*/
int QHttpResponseHeader::statusCode() const
{
Q_D(const QHttpResponseHeader);
return d->statCode;
}
/*!
Returns the reason phrase of the HTTP response header.
\sa statusCode() majorVersion() minorVersion()
*/
QString QHttpResponseHeader::reasonPhrase() const
{
Q_D(const QHttpResponseHeader);
return d->reasonPhr;
}
/*!
Returns the major protocol-version of the HTTP response header.
\sa minorVersion() statusCode() reasonPhrase()
*/
int QHttpResponseHeader::majorVersion() const
{
Q_D(const QHttpResponseHeader);
return d->majVer;
}
/*!
Returns the minor protocol-version of the HTTP response header.
\sa majorVersion() statusCode() reasonPhrase()
*/
int QHttpResponseHeader::minorVersion() const
{
Q_D(const QHttpResponseHeader);
return d->minVer;
}
/*! \internal
*/
bool QHttpResponseHeader::parseLine(const QString &line, int number)
{
Q_D(QHttpResponseHeader);
if (number != 0)
return QHttpHeader::parseLine(line, number);
QString l = line.simplified();
if (l.length() < 10)
return false;
if (l.left(5) == QLatin1String("HTTP/") && l[5].isDigit() && l[6] == QLatin1Char('.') &&
l[7].isDigit() && l[8] == QLatin1Char(' ') && l[9].isDigit()) {
d->majVer = l[5].toLatin1() - '0';
d->minVer = l[7].toLatin1() - '0';
int pos = l.indexOf(QLatin1Char(' '), 9);
if (pos != -1) {
d->reasonPhr = l.mid(pos + 1);
d->statCode = l.mid(9, pos - 9).toInt();
} else {
d->statCode = l.mid(9).toInt();
d->reasonPhr.clear();
}
} else {
return false;
}
return true;
}
/*! \reimp
*/
QString QHttpResponseHeader::toString() const
{
Q_D(const QHttpResponseHeader);
QString ret(QLatin1String("HTTP/%1.%2 %3 %4\r\n%5\r\n"));
return ret.arg(d->majVer).arg(d->minVer).arg(d->statCode).arg(d->reasonPhr).arg(QHttpHeader::toString());
}
class QHttpRequestHeaderPrivate : public QHttpHeaderPrivate
{
Q_DECLARE_PUBLIC(QHttpRequestHeader)
public:
QString m;
QString p;
int majVer;
int minVer;
};
/****************************************************
*
* QHttpRequestHeader
*
****************************************************/
/*!
\class QHttpRequestHeader
\obsolete
\brief The QHttpRequestHeader class contains request header information for HTTP.
\ingroup network
\inmodule QtNetwork
This class is used in the QHttp class to report the header
information if the client requests something from the server.
HTTP requests have a method which describes the request's action.
The most common requests are "GET" and "POST". In addition to the
request method the header also includes a request-URI to specify
the location for the method to use.
The method, request-URI and protocol-version can be set using a
constructor or later using setRequest(). The values can be
obtained using method(), path(), majorVersion() and
minorVersion().
Note that the request-URI must be in the format expected by the
HTTP server. That is, all reserved characters must be encoded in
%HH (where HH are two hexadecimal digits). See
QUrl::toPercentEncoding() for more information.
Important inherited functions: setValue() and value().
\sa QHttpResponseHeader QHttp
*/
/*!
Constructs an empty HTTP request header.
*/
QHttpRequestHeader::QHttpRequestHeader()
: QHttpHeader(*new QHttpRequestHeaderPrivate)
{
setValid(false);
}
/*!
Constructs a HTTP request header for the method \a method, the
request-URI \a path and the protocol-version \a majorVer and \a
minorVer. The \a path argument must be properly encoded for an
HTTP request.
*/
QHttpRequestHeader::QHttpRequestHeader(const QString &method, const QString &path, int majorVer, int minorVer)
: QHttpHeader(*new QHttpRequestHeaderPrivate)
{
Q_D(QHttpRequestHeader);
d->m = method;
d->p = path;
d->majVer = majorVer;
d->minVer = minorVer;
}
/*!
Constructs a copy of \a header.
*/
QHttpRequestHeader::QHttpRequestHeader(const QHttpRequestHeader &header)
: QHttpHeader(*new QHttpRequestHeaderPrivate, header)
{
Q_D(QHttpRequestHeader);
d->m = header.d_func()->m;
d->p = header.d_func()->p;
d->majVer = header.d_func()->majVer;
d->minVer = header.d_func()->minVer;
}
/*!
Copies the content of \a header into this QHttpRequestHeader
*/
QHttpRequestHeader &QHttpRequestHeader::operator=(const QHttpRequestHeader &header)
{
Q_D(QHttpRequestHeader);
QHttpHeader::operator=(header);
d->m = header.d_func()->m;
d->p = header.d_func()->p;
d->majVer = header.d_func()->majVer;
d->minVer = header.d_func()->minVer;
return *this;
}
/*!
Constructs a HTTP request header from the string \a str. The \a
str should consist of one or more "\r\n" delimited lines; the first line
should be the request-line (format: method, space, request-URI, space
HTTP-version); each of the remaining lines should have the format key,
colon, space, value.
*/
QHttpRequestHeader::QHttpRequestHeader(const QString &str)
: QHttpHeader(*new QHttpRequestHeaderPrivate)
{
parse(str);
}
/*!
This function sets the request method to \a method, the
request-URI to \a path and the protocol-version to \a majorVer and
\a minorVer. The \a path argument must be properly encoded for an
HTTP request.
\sa method() path() majorVersion() minorVersion()
*/
void QHttpRequestHeader::setRequest(const QString &method, const QString &path, int majorVer, int minorVer)
{
Q_D(QHttpRequestHeader);
setValid(true);
d->m = method;
d->p = path;
d->majVer = majorVer;
d->minVer = minorVer;
}
/*!
Returns the method of the HTTP request header.
\sa path() majorVersion() minorVersion() setRequest()
*/
QString QHttpRequestHeader::method() const
{
Q_D(const QHttpRequestHeader);
return d->m;
}
/*!
Returns the request-URI of the HTTP request header.
\sa method() majorVersion() minorVersion() setRequest()
*/
QString QHttpRequestHeader::path() const
{
Q_D(const QHttpRequestHeader);
return d->p;
}
/*!
Returns the major protocol-version of the HTTP request header.
\sa minorVersion() method() path() setRequest()
*/
int QHttpRequestHeader::majorVersion() const
{
Q_D(const QHttpRequestHeader);
return d->majVer;
}
/*!
Returns the minor protocol-version of the HTTP request header.
\sa majorVersion() method() path() setRequest()
*/
int QHttpRequestHeader::minorVersion() const
{
Q_D(const QHttpRequestHeader);
return d->minVer;
}
/*! \internal
*/
bool QHttpRequestHeader::parseLine(const QString &line, int number)
{
Q_D(QHttpRequestHeader);
if (number != 0)
return QHttpHeader::parseLine(line, number);
QStringList lst = line.simplified().split(QLatin1String(" "));
if (lst.count() > 0) {
d->m = lst[0];
if (lst.count() > 1) {
d->p = lst[1];
if (lst.count() > 2) {
QString v = lst[2];
if (v.length() >= 8 && v.left(5) == QLatin1String("HTTP/") &&
v[5].isDigit() && v[6] == QLatin1Char('.') && v[7].isDigit()) {
d->majVer = v[5].toLatin1() - '0';
d->minVer = v[7].toLatin1() - '0';
return true;
}
}
}
}
return false;
}
/*! \reimp
*/
QString QHttpRequestHeader::toString() const
{
Q_D(const QHttpRequestHeader);
QString first(QLatin1String("%1 %2"));
QString last(QLatin1String(" HTTP/%3.%4\r\n%5\r\n"));
return first.arg(d->m).arg(d->p) +
last.arg(d->majVer).arg(d->minVer).arg(QHttpHeader::toString());
}
/****************************************************
*
* QHttp
*
****************************************************/
/*!
\class QHttp
\obsolete
\reentrant
\brief The QHttp class provides an implementation of the HTTP protocol.
\ingroup network
\inmodule QtNetwork
This class provides a direct interface to HTTP that allows you to
download and upload data with the HTTP protocol.
However, for new applications, it is
recommended to use QNetworkAccessManager and QNetworkReply, as
those classes possess a simpler, yet more powerful API
and a more modern protocol implementation.
The class works asynchronously, so there are no blocking
functions. If an operation cannot be executed immediately, the
function will still return straight away and the operation will be
scheduled for later execution. The results of scheduled operations
are reported via signals. This approach depends on the event loop
being in operation.
The operations that can be scheduled (they are called "requests"
in the rest of the documentation) are the following: setHost(),
get(), post(), head() and request().
All of these requests return a unique identifier that allows you
to keep track of the request that is currently executed. When the
execution of a request starts, the requestStarted() signal with
the identifier is emitted and when the request is finished, the
requestFinished() signal is emitted with the identifier and a bool
that indicates if the request finished with an error.
To make an HTTP request you must set up suitable HTTP headers. The
following example demonstrates how to request the main HTML page
from the Qt website (i.e., the URL \c http://qt.nokia.com/index.html):
\snippet doc/src/snippets/code/src_network_access_qhttp.cpp 2
For the common HTTP requests \c GET, \c POST and \c HEAD, QHttp
provides the convenience functions get(), post() and head(). They
already use a reasonable header and if you don't have to set
special header fields, they are easier to use. The above example
can also be written as:
\snippet doc/src/snippets/code/src_network_access_qhttp.cpp 3
For this example the following sequence of signals is emitted
(with small variations, depending on network traffic, etc.):
\snippet doc/src/snippets/code/src_network_access_qhttp.cpp 4
The dataSendProgress() and dataReadProgress() signals in the above
example are useful if you want to show a \link QProgressBar
progress bar\endlink to inform the user about the progress of the
download. The second argument is the total size of data. In
certain cases it is not possible to know the total amount in
advance, in which case the second argument is 0. (If you connect
to a QProgressBar a total of 0 results in a busy indicator.)
When the response header is read, it is reported with the
responseHeaderReceived() signal.
The readyRead() signal tells you that there is data ready to be
read. The amount of data can then be queried with the
bytesAvailable() function and it can be read with the read()
or readAll() functions.
If an error occurs during the execution of one of the commands in
a sequence of commands, all the pending commands (i.e. scheduled,
but not yet executed commands) are cleared and no signals are
emitted for them.
For example, if you have the following sequence of requests
\snippet doc/src/snippets/code/src_network_access_qhttp.cpp 5
and the get() request fails because the host lookup fails, then
the post() request is never executed and the signals would look
like this:
\snippet doc/src/snippets/code/src_network_access_qhttp.cpp 6
You can then get details about the error with the error() and
errorString() functions. Note that only unexpected behavior, like
network failure is considered as an error. If the server response
contains an error status, like a 404 response, this is reported as
a normal response case. So you should always check the \link
QHttpResponseHeader::statusCode() status code \endlink of the
response header.
The functions currentId() and currentRequest() provide more
information about the currently executing request.
The functions hasPendingRequests() and clearPendingRequests()
allow you to query and clear the list of pending requests.
\sa QFtp, QNetworkAccessManager, QNetworkRequest, QNetworkReply,
{HTTP Example}, {Torrent Example}
*/
/*!
Constructs a QHttp object. The \a parent parameter is passed on
to the QObject constructor.
*/
QHttp::QHttp(QObject *parent)
: QObject(*new QHttpPrivate, parent)
{
Q_D(QHttp);
d->init();
}
/*!
Constructs a QHttp object. Subsequent requests are done by
connecting to the server \a hostName on port \a port.
The \a parent parameter is passed on to the QObject constructor.
\sa setHost()
*/
QHttp::QHttp(const QString &hostName, quint16 port, QObject *parent)
: QObject(*new QHttpPrivate, parent)
{
Q_D(QHttp);
d->init();
d->hostName = hostName;
d->port = port;
}
/*!
Constructs a QHttp object. Subsequent requests are done by
connecting to the server \a hostName on port \a port using the
connection mode \a mode.
If port is 0, it will use the default port for the \a mode used
(80 for Http and 443 for Https).
The \a parent parameter is passed on to the QObject constructor.
\sa setHost()
*/
QHttp::QHttp(const QString &hostName, ConnectionMode mode, quint16 port, QObject *parent)
: QObject(*new QHttpPrivate, parent)
{
Q_D(QHttp);
d->init();
d->hostName = hostName;
if (port == 0)
port = (mode == ConnectionModeHttp) ? 80 : 443;
d->port = port;
d->mode = mode;
}
void QHttpPrivate::init()
{
Q_Q(QHttp);
errorString = QLatin1String(QT_TRANSLATE_NOOP("QHttp", "Unknown error"));
QMetaObject::invokeMethod(q, "_q_slotDoFinished", Qt::QueuedConnection);
post100ContinueTimer.setSingleShot(true);
QObject::connect(&post100ContinueTimer, SIGNAL(timeout()), q, SLOT(_q_continuePost()));
}
/*!
Destroys the QHttp object. If there is an open connection, it is
closed.
*/
QHttp::~QHttp()
{
abort();
}
/*!
\enum QHttp::ConnectionMode
\since 4.3
This enum is used to specify the mode of connection to use:
\value ConnectionModeHttp The connection is a regular HTTP connection to the server
\value ConnectionModeHttps The HTTPS protocol is used and the connection is encrypted using SSL.
When using the HTTPS mode, care should be taken to connect to the sslErrors signal, and
handle possible SSL errors.
\sa QSslSocket
*/
/*!
\enum QHttp::State
This enum is used to specify the state the client is in:
\value Unconnected There is no connection to the host.
\value HostLookup A host name lookup is in progress.
\value Connecting An attempt to connect to the host is in progress.
\value Sending The client is sending its request to the server.
\value Reading The client's request has been sent and the client
is reading the server's response.
\value Connected The connection to the host is open, but the client is
neither sending a request, nor waiting for a response.
\value Closing The connection is closing down, but is not yet
closed. (The state will be \c Unconnected when the connection is
closed.)
\sa stateChanged() state()
*/
/*! \enum QHttp::Error
This enum identifies the error that occurred.
\value NoError No error occurred.
\value HostNotFound The host name lookup failed.
\value ConnectionRefused The server refused the connection.
\value UnexpectedClose The server closed the connection unexpectedly.
\value InvalidResponseHeader The server sent an invalid response header.
\value WrongContentLength The client could not read the content correctly
because an error with respect to the content length occurred.
\value Aborted The request was aborted with abort().
\value ProxyAuthenticationRequiredError QHttp is using a proxy, and the
proxy server requires authentication to establish a connection.
\value AuthenticationRequiredError The web server requires authentication
to complete the request.
\value UnknownError An error other than those specified above
occurred.
\sa error()
*/
/*!
\fn void QHttp::stateChanged(int state)
This signal is emitted when the state of the QHttp object changes.
The argument \a state is the new state of the connection; it is
one of the \l State values.
This usually happens when a request is started, but it can also
happen when the server closes the connection or when a call to
close() succeeded.
\sa get() post() head() request() close() state() State
*/
/*!
\fn void QHttp::responseHeaderReceived(const QHttpResponseHeader &resp);
This signal is emitted when the HTTP header of a server response
is available. The header is passed in \a resp.
\sa get() post() head() request() readyRead()
*/
/*!
\fn void QHttp::readyRead(const QHttpResponseHeader &resp)
This signal is emitted when there is new response data to read.
If you specified a device in the request where the data should be
written to, then this signal is \e not emitted; instead the data
is written directly to the device.
The response header is passed in \a resp.
You can read the data with the readAll() or read() functions
This signal is useful if you want to process the data in chunks as
soon as it becomes available. If you are only interested in the
complete data, just connect to the requestFinished() signal and
read the data then instead.
\sa get() post() request() readAll() read() bytesAvailable()
*/
/*!
\fn void QHttp::dataSendProgress(int done, int total)
This signal is emitted when this object sends data to a HTTP
server to inform it about the progress of the upload.
\a done is the amount of data that has already arrived and \a
total is the total amount of data. It is possible that the total
amount of data that should be transferred cannot be determined, in
which case \a total is 0.(If you connect to a QProgressBar, the
progress bar shows a busy indicator if the total is 0).
\warning \a done and \a total are not necessarily the size in
bytes, since for large files these values might need to be
"scaled" to avoid overflow.
\sa dataReadProgress(), post(), request(), QProgressBar
*/
/*!
\fn void QHttp::dataReadProgress(int done, int total)
This signal is emitted when this object reads data from a HTTP
server to indicate the current progress of the download.
\a done is the amount of data that has already arrived and \a
total is the total amount of data. It is possible that the total
amount of data that should be transferred cannot be determined, in
which case \a total is 0.(If you connect to a QProgressBar, the
progress bar shows a busy indicator if the total is 0).
\warning \a done and \a total are not necessarily the size in
bytes, since for large files these values might need to be
"scaled" to avoid overflow.
\sa dataSendProgress() get() post() request() QProgressBar
*/
/*!
\fn void QHttp::requestStarted(int id)
This signal is emitted when processing the request identified by
\a id starts.
\sa requestFinished() done()
*/
/*!
\fn void QHttp::requestFinished(int id, bool error)
This signal is emitted when processing the request identified by
\a id has finished. \a error is true if an error occurred during
the processing; otherwise \a error is false.
\sa requestStarted() done() error() errorString()
*/
/*!
\fn void QHttp::done(bool error)
This signal is emitted when the last pending request has finished;
(it is emitted after the last request's requestFinished() signal).
\a error is true if an error occurred during the processing;
otherwise \a error is false.
\sa requestFinished() error() errorString()
*/
#ifndef QT_NO_NETWORKPROXY
/*!
\fn void QHttp::proxyAuthenticationRequired(const QNetworkProxy &proxy, QAuthenticator *authenticator)
\since 4.3
This signal can be emitted when a \a proxy that requires
authentication is used. The \a authenticator object can then be
filled in with the required details to allow authentication and
continue the connection.
\note It is not possible to use a QueuedConnection to connect to
this signal, as the connection will fail if the authenticator has
not been filled in with new information when the signal returns.
\sa QAuthenticator, QNetworkProxy
*/
#endif
/*!
\fn void QHttp::authenticationRequired(const QString &hostname, quint16 port, QAuthenticator *authenticator)
\since 4.3
This signal can be emitted when a web server on a given \a hostname and \a
port requires authentication. The \a authenticator object can then be
filled in with the required details to allow authentication and continue
the connection.
\note It is not possible to use a QueuedConnection to connect to
this signal, as the connection will fail if the authenticator has
not been filled in with new information when the signal returns.
\sa QAuthenticator, QNetworkProxy
*/
/*!
\fn void QHttp::sslErrors(const QList<QSslError> &errors)
\since 4.3
Forwards the sslErrors signal from the QSslSocket used in QHttp. \a errors
is the list of errors that occurred during the SSL handshake. Unless you
call ignoreSslErrors() from within a slot connected to this signal when an
error occurs, QHttp will tear down the connection immediately after
emitting the signal.
\sa QSslSocket QSslSocket::ignoreSslErrors()
*/
/*!
Aborts the current request and deletes all scheduled requests.
For the current request, the requestFinished() signal with the \c
error argument \c true is emitted. For all other requests that are
affected by the abort(), no signals are emitted.
Since this slot also deletes the scheduled requests, there are no
requests left and the done() signal is emitted (with the \c error
argument \c true).
\sa clearPendingRequests()
*/
void QHttp::abort()
{
Q_D(QHttp);
if (d->pending.isEmpty())
return;
d->finishedWithError(tr("Request aborted"), Aborted);
clearPendingRequests();
if (d->socket)
d->socket->abort();
d->closeConn();
}
/*!
Returns the number of bytes that can be read from the response
content at the moment.
\sa get() post() request() readyRead() read() readAll()
*/
qint64 QHttp::bytesAvailable() const
{
Q_D(const QHttp);
#if defined(QHTTP_DEBUG)
qDebug("QHttp::bytesAvailable(): %d bytes", (int)d->rba.size());
#endif
return qint64(d->rba.size());
}
/*! \fn qint64 QHttp::readBlock(char *data, quint64 maxlen)
Use read() instead.
*/
/*!
Reads \a maxlen bytes from the response content into \a data and
returns the number of bytes read. Returns -1 if an error occurred.
\sa get() post() request() readyRead() bytesAvailable() readAll()
*/
qint64 QHttp::read(char *data, qint64 maxlen)
{
Q_D(QHttp);
if (data == 0 && maxlen != 0) {
qWarning("QHttp::read: Null pointer error");
return -1;
}
if (maxlen >= d->rba.size())
maxlen = d->rba.size();
int readSoFar = 0;
while (!d->rba.isEmpty() && readSoFar < maxlen) {
int nextBlockSize = d->rba.nextDataBlockSize();
int bytesToRead = qMin<qint64>(maxlen - readSoFar, nextBlockSize);
memcpy(data + readSoFar, d->rba.readPointer(), bytesToRead);
d->rba.free(bytesToRead);
readSoFar += bytesToRead;
}
d->bytesDone += maxlen;
#if defined(QHTTP_DEBUG)
qDebug("QHttp::read(): read %lld bytes (%lld bytes done)", maxlen, d->bytesDone);
#endif
return maxlen;
}
/*!
Reads all the bytes from the response content and returns them.
\sa get() post() request() readyRead() bytesAvailable() read()
*/
QByteArray QHttp::readAll()
{
qint64 avail = bytesAvailable();
QByteArray tmp;
tmp.resize(int(avail));
qint64 got = read(tmp.data(), int(avail));
tmp.resize(got);
return tmp;
}
/*!
Returns the identifier of the HTTP request being executed or 0 if
there is no request being executed (i.e. they've all finished).
\sa currentRequest()
*/
int QHttp::currentId() const
{
Q_D(const QHttp);
if (d->pending.isEmpty())
return 0;
return d->pending.first()->id;
}
/*!
Returns the request header of the HTTP request being executed. If
the request is one issued by setHost() or close(), it
returns an invalid request header, i.e.
QHttpRequestHeader::isValid() returns false.
\sa currentId()
*/
QHttpRequestHeader QHttp::currentRequest() const
{
Q_D(const QHttp);
if (!d->pending.isEmpty()) {
QHttpRequest *r = d->pending.first();
if (r->hasRequestHeader())
return r->requestHeader();
}
return QHttpRequestHeader();
}
/*!
Returns the received response header of the most recently finished HTTP
request. If no response has yet been received
QHttpResponseHeader::isValid() will return false.
\sa currentRequest()
*/
QHttpResponseHeader QHttp::lastResponse() const
{
Q_D(const QHttp);
return d->response;
}
/*!
Returns the QIODevice pointer that is used as the data source of the HTTP
request being executed. If there is no current request or if the request
does not use an IO device as the data source, this function returns 0.
This function can be used to delete the QIODevice in the slot connected to
the requestFinished() signal.
\sa currentDestinationDevice() post() request()
*/
QIODevice *QHttp::currentSourceDevice() const
{
Q_D(const QHttp);
if (d->pending.isEmpty())
return 0;
return d->pending.first()->sourceDevice();
}
/*!
Returns the QIODevice pointer that is used as to store the data of the HTTP
request being executed. If there is no current request or if the request
does not store the data to an IO device, this function returns 0.
This function can be used to delete the QIODevice in the slot connected to
the requestFinished() signal.
\sa currentSourceDevice() get() post() request()
*/
QIODevice *QHttp::currentDestinationDevice() const
{
Q_D(const QHttp);
if (d->pending.isEmpty())
return 0;
return d->pending.first()->destinationDevice();
}
/*!
Returns true if there are any requests scheduled that have not yet
been executed; otherwise returns false.
The request that is being executed is \e not considered as a
scheduled request.
\sa clearPendingRequests() currentId() currentRequest()
*/
bool QHttp::hasPendingRequests() const
{
Q_D(const QHttp);
return d->pending.count() > 1;
}
/*!
Deletes all pending requests from the list of scheduled requests.
This does not affect the request that is being executed. If
you want to stop this as well, use abort().
\sa hasPendingRequests() abort()
*/
void QHttp::clearPendingRequests()
{
Q_D(QHttp);
// delete all entires except the first one
while (d->pending.count() > 1)
delete d->pending.takeLast();
}
/*!
Sets the HTTP server that is used for requests to \a hostName on
port \a port.
The function does not block; instead, it returns immediately. The request
is scheduled, and its execution is performed asynchronously. The
function returns a unique identifier which is passed by
requestStarted() and requestFinished().
When the request is started the requestStarted() signal is
emitted. When it is finished the requestFinished() signal is
emitted.
\sa get() post() head() request() requestStarted() requestFinished() done()
*/
int QHttp::setHost(const QString &hostName, quint16 port)
{
Q_D(QHttp);
return d->addRequest(new QHttpSetHostRequest(hostName, port, ConnectionModeHttp));
}
/*!
Sets the HTTP server that is used for requests to \a hostName on
port \a port using the connection mode \a mode.
If port is 0, it will use the default port for the \a mode used
(80 for HTTP and 443 for HTTPS).
The function does not block; instead, it returns immediately. The request
is scheduled, and its execution is performed asynchronously. The
function returns a unique identifier which is passed by
requestStarted() and requestFinished().
When the request is started the requestStarted() signal is
emitted. When it is finished the requestFinished() signal is
emitted.
\sa get() post() head() request() requestStarted() requestFinished() done()
*/
int QHttp::setHost(const QString &hostName, ConnectionMode mode, quint16 port)
{
#ifdef QT_NO_OPENSSL
if (mode == ConnectionModeHttps)
qWarning("QHttp::setHost: HTTPS connection requested but SSL support not compiled in");
#endif
Q_D(QHttp);
if (port == 0)
port = (mode == ConnectionModeHttp) ? 80 : 443;
return d->addRequest(new QHttpSetHostRequest(hostName, port, mode));
}
/*!
Replaces the internal QTcpSocket that QHttp uses with \a
socket. This is useful if you want to use your own custom QTcpSocket
subclass instead of the plain QTcpSocket that QHttp uses by default.
QHttp does not take ownership of the socket, and will not delete \a
socket when destroyed.
The function does not block; instead, it returns immediately. The request
is scheduled, and its execution is performed asynchronously. The
function returns a unique identifier which is passed by
requestStarted() and requestFinished().
When the request is started the requestStarted() signal is
emitted. When it is finished the requestFinished() signal is
emitted.
Note: If QHttp is used in a non-GUI thread that runs its own event
loop, you must move \a socket to that thread before calling setSocket().
\sa QObject::moveToThread(), {Thread Support in Qt}
*/
int QHttp::setSocket(QTcpSocket *socket)
{
Q_D(QHttp);
return d->addRequest(new QHttpSetSocketRequest(socket));
}
/*!
This function sets the user name \a userName and password \a
password for web pages that require authentication.
The function does not block; instead, it returns immediately. The request
is scheduled, and its execution is performed asynchronously. The
function returns a unique identifier which is passed by
requestStarted() and requestFinished().
When the request is started the requestStarted() signal is
emitted. When it is finished the requestFinished() signal is
emitted.
*/
int QHttp::setUser(const QString &userName, const QString &password)
{
Q_D(QHttp);
return d->addRequest(new QHttpSetUserRequest(userName, password));
}
#ifndef QT_NO_NETWORKPROXY
/*!
Enables HTTP proxy support, using the proxy server \a host on port \a
port. \a username and \a password can be provided if the proxy server
requires authentication.
Example:
\snippet doc/src/snippets/code/src_network_access_qhttp.cpp 7
QHttp supports non-transparent web proxy servers only, such as the Squid
Web proxy cache server (from \l http://www.squid.org/). For transparent
proxying, such as SOCKS5, use QNetworkProxy instead.
\note setProxy() has to be called before setHost() for it to take effect.
If setProxy() is called after setHost(), then it will not apply until after
setHost() is called again.
\sa QFtp::setProxy()
*/
int QHttp::setProxy(const QString &host, int port,
const QString &username, const QString &password)
{
Q_D(QHttp);
QNetworkProxy proxy(QNetworkProxy::HttpProxy, host, port, username, password);
return d->addRequest(new QHttpSetProxyRequest(proxy));
}
/*!
\overload
Enables HTTP proxy support using the proxy settings from \a
proxy. If \a proxy is a transparent proxy, QHttp will call
QAbstractSocket::setProxy() on the underlying socket. If the type
is QNetworkProxy::HttpCachingProxy, QHttp will behave like the
previous function.
\note for compatibility with Qt 4.3, if the proxy type is
QNetworkProxy::HttpProxy and the request type is unencrypted (that
is, ConnectionModeHttp), QHttp will treat the proxy as a caching
proxy.
*/
int QHttp::setProxy(const QNetworkProxy &proxy)
{
Q_D(QHttp);
return d->addRequest(new QHttpSetProxyRequest(proxy));
}
#endif
/*!
Sends a get request for \a path to the server set by setHost() or
as specified in the constructor.
\a path must be a absolute path like \c /index.html or an
absolute URI like \c http://example.com/index.html and
must be encoded with either QUrl::toPercentEncoding() or
QUrl::encodedPath().
If the IO device \a to is 0 the readyRead() signal is emitted
every time new content data is available to read.
If the IO device \a to is not 0, the content data of the response
is written directly to the device. Make sure that the \a to
pointer is valid for the duration of the operation (it is safe to
delete it when the requestFinished() signal is emitted).
\section1 Request Processing
The function does not block; instead, it returns immediately. The request
is scheduled, and its execution is performed asynchronously. The
function returns a unique identifier which is passed by
requestStarted() and requestFinished().
When the request is started the requestStarted() signal is
emitted. When it is finished the requestFinished() signal is
emitted.
\sa setHost(), post(), head(), request(), requestStarted(),
requestFinished(), done()
*/
int QHttp::get(const QString &path, QIODevice *to)
{
Q_D(QHttp);
QHttpRequestHeader header(QLatin1String("GET"), path);
header.setValue(QLatin1String("Connection"), QLatin1String("Keep-Alive"));
return d->addRequest(new QHttpPGHRequest(header, (QIODevice *) 0, to));
}
/*!
Sends a post request for \a path to the server set by setHost() or
as specified in the constructor.
\a path must be an absolute path like \c /index.html or an
absolute URI like \c http://example.com/index.html and
must be encoded with either QUrl::toPercentEncoding() or
QUrl::encodedPath().
The incoming data comes via the \a data IO device.
If the IO device \a to is 0 the readyRead() signal is emitted
every time new content data is available to read.
If the IO device \a to is not 0, the content data of the response
is written directly to the device. Make sure that the \a to
pointer is valid for the duration of the operation (it is safe to
delete it when the requestFinished() signal is emitted).
The function does not block; instead, it returns immediately. The request
is scheduled, and its execution is performed asynchronously. The
function returns a unique identifier which is passed by
requestStarted() and requestFinished().
When the request is started the requestStarted() signal is
emitted. When it is finished the requestFinished() signal is
emitted.
\sa setHost() get() head() request() requestStarted() requestFinished() done()
*/
int QHttp::post(const QString &path, QIODevice *data, QIODevice *to )
{
Q_D(QHttp);
QHttpRequestHeader header(QLatin1String("POST"), path);
header.setValue(QLatin1String("Connection"), QLatin1String("Keep-Alive"));
return d->addRequest(new QHttpPGHRequest(header, data, to));
}
/*!
\overload
\a data is used as the content data of the HTTP request.
*/
int QHttp::post(const QString &path, const QByteArray &data, QIODevice *to)
{
Q_D(QHttp);
QHttpRequestHeader header(QLatin1String("POST"), path);
header.setValue(QLatin1String("Connection"), QLatin1String("Keep-Alive"));
return d->addRequest(new QHttpPGHRequest(header, new QByteArray(data), to));
}
/*!
Sends a header request for \a path to the server set by setHost()
or as specified in the constructor.
\a path must be an absolute path like \c /index.html or an
absolute URI like \c http://example.com/index.html.
The function does not block; instead, it returns immediately. The request
is scheduled, and its execution is performed asynchronously. The
function returns a unique identifier which is passed by
requestStarted() and requestFinished().
When the request is started the requestStarted() signal is
emitted. When it is finished the requestFinished() signal is
emitted.
\sa setHost() get() post() request() requestStarted() requestFinished() done()
*/
int QHttp::head(const QString &path)
{
Q_D(QHttp);
QHttpRequestHeader header(QLatin1String("HEAD"), path);
header.setValue(QLatin1String("Connection"), QLatin1String("Keep-Alive"));
return d->addRequest(new QHttpPGHRequest(header, (QIODevice*)0, 0));
}
/*!
Sends a request to the server set by setHost() or as specified in
the constructor. Uses the \a header as the HTTP request header.
You are responsible for setting up a header that is appropriate
for your request.
The incoming data comes via the \a data IO device.
If the IO device \a to is 0 the readyRead() signal is emitted
every time new content data is available to read.
If the IO device \a to is not 0, the content data of the response
is written directly to the device. Make sure that the \a to
pointer is valid for the duration of the operation (it is safe to
delete it when the requestFinished() signal is emitted).
The function does not block; instead, it returns immediately. The request
is scheduled, and its execution is performed asynchronously. The
function returns a unique identifier which is passed by
requestStarted() and requestFinished().
When the request is started the requestStarted() signal is
emitted. When it is finished the requestFinished() signal is
emitted.
\sa setHost() get() post() head() requestStarted() requestFinished() done()
*/
int QHttp::request(const QHttpRequestHeader &header, QIODevice *data, QIODevice *to)
{
Q_D(QHttp);
return d->addRequest(new QHttpNormalRequest(header, data, to));
}
/*!
\overload
\a data is used as the content data of the HTTP request.
*/
int QHttp::request(const QHttpRequestHeader &header, const QByteArray &data, QIODevice *to )
{
Q_D(QHttp);
return d->addRequest(new QHttpNormalRequest(header, new QByteArray(data), to));
}
/*!
Closes the connection; this is useful if you have a keep-alive
connection and want to close it.
For the requests issued with get(), post() and head(), QHttp sets
the connection to be keep-alive. You can also do this using the
header you pass to the request() function. QHttp only closes the
connection to the HTTP server if the response header requires it
to do so.
The function does not block; instead, it returns immediately. The request
is scheduled, and its execution is performed asynchronously. The
function returns a unique identifier which is passed by
requestStarted() and requestFinished().
When the request is started the requestStarted() signal is
emitted. When it is finished the requestFinished() signal is
emitted.
If you want to close the connection immediately, you have to use
abort() instead.
\sa stateChanged() abort() requestStarted() requestFinished() done()
*/
int QHttp::close()
{
Q_D(QHttp);
return d->addRequest(new QHttpCloseRequest());
}
/*!
\obsolete
Behaves the same as close().
*/
int QHttp::closeConnection()
{
Q_D(QHttp);
return d->addRequest(new QHttpCloseRequest());
}
int QHttpPrivate::addRequest(QHttpNormalRequest *req)
{
QHttpRequestHeader h = req->requestHeader();
if (h.path().isEmpty()) {
// note: the following qWarning is autotested. If you change it, change the test too.
qWarning("QHttp: empty path requested is invalid -- using '/'");
h.setRequest(h.method(), QLatin1String("/"), h.majorVersion(), h.minorVersion());
req->setRequestHeader(h);
}
// contine below
return addRequest(static_cast<QHttpRequest *>(req));
}
int QHttpPrivate::addRequest(QHttpRequest *req)
{
Q_Q(QHttp);
pending.append(req);
if (pending.count() == 1) {
// don't emit the requestStarted() signal before the id is returned
QMetaObject::invokeMethod(q, "_q_startNextRequest", Qt::QueuedConnection);
}
return req->id;
}
void QHttpPrivate::_q_startNextRequest()
{
Q_Q(QHttp);
if (pending.isEmpty())
return;
QHttpRequest *r = pending.first();
error = QHttp::NoError;
errorString = QLatin1String(QT_TRANSLATE_NOOP("QHttp", "Unknown error"));
if (q->bytesAvailable() != 0)
q->readAll(); // clear the data
emit q->requestStarted(r->id);
r->start(q);
}
void QHttpPrivate::_q_slotSendRequest()
{
if (hostName.isNull()) {
finishedWithError(QLatin1String(QT_TRANSLATE_NOOP("QHttp", "No server set to connect to")),
QHttp::UnknownError);
return;
}
QString connectionHost = hostName;
int connectionPort = port;
bool sslInUse = false;
#ifndef QT_NO_OPENSSL
QSslSocket *sslSocket = qobject_cast<QSslSocket *>(socket);
if (mode == QHttp::ConnectionModeHttps || (sslSocket && sslSocket->isEncrypted()))
sslInUse = true;
#endif
#ifndef QT_NO_NETWORKPROXY
bool cachingProxyInUse = false;
bool transparentProxyInUse = false;
if (proxy.type() == QNetworkProxy::DefaultProxy)
proxy = QNetworkProxy::applicationProxy();
if (proxy.type() == QNetworkProxy::HttpCachingProxy) {
if (proxy.hostName().isEmpty())
proxy.setType(QNetworkProxy::NoProxy);
else
cachingProxyInUse = true;
} else if (proxy.type() == QNetworkProxy::HttpProxy) {
// Compatibility behaviour: HttpProxy can be used to mean both
// transparent and caching proxy
if (proxy.hostName().isEmpty()) {
proxy.setType(QNetworkProxy::NoProxy);
} else if (sslInUse) {
// Disallow use of caching proxy with HTTPS; instead fall back to
// transparent HTTP CONNECT proxying.
transparentProxyInUse = true;
} else {
proxy.setType(QNetworkProxy::HttpCachingProxy);
cachingProxyInUse = true;
}
}
// Proxy support. Insert the Proxy-Authorization item into the
// header before it's sent off to the proxy.
if (cachingProxyInUse) {
QUrl proxyUrl;
proxyUrl.setScheme(QLatin1String("http"));
proxyUrl.setHost(hostName);
if (port && port != 80)
proxyUrl.setPort(port);
QString request = QString::fromAscii(proxyUrl.resolved(QUrl::fromEncoded(header.path().toLatin1())).toEncoded());
header.setRequest(header.method(), request, header.majorVersion(), header.minorVersion());
header.setValue(QLatin1String("Proxy-Connection"), QLatin1String("keep-alive"));
QAuthenticatorPrivate *auth = QAuthenticatorPrivate::getPrivate(proxyAuthenticator);
if (auth && auth->method != QAuthenticatorPrivate::None) {
QByteArray response = auth->calculateResponse(header.method().toLatin1(), header.path().toLatin1());
header.setValue(QLatin1String("Proxy-Authorization"), QString::fromLatin1(response));
}
connectionHost = proxy.hostName();
connectionPort = proxy.port();
}
if (transparentProxyInUse || sslInUse) {
socket->setProxy(proxy);
}
#endif
// Username support. Insert the user and password into the query
// string.
QAuthenticatorPrivate *auth = QAuthenticatorPrivate::getPrivate(authenticator);
if (auth && auth->method != QAuthenticatorPrivate::None) {
QByteArray response = auth->calculateResponse(header.method().toLatin1(), header.path().toLatin1());
header.setValue(QLatin1String("Authorization"), QString::fromLatin1(response));
}
// Do we need to setup a new connection or can we reuse an
// existing one?
if (socket->peerName() != connectionHost || socket->peerPort() != connectionPort
|| socket->state() != QTcpSocket::ConnectedState
#ifndef QT_NO_OPENSSL
|| (sslSocket && sslSocket->isEncrypted() != (mode == QHttp::ConnectionModeHttps))
#endif
) {
socket->blockSignals(true);
socket->abort();
socket->blockSignals(false);
setState(QHttp::Connecting);
#ifndef QT_NO_OPENSSL
if (sslSocket && mode == QHttp::ConnectionModeHttps) {
sslSocket->connectToHostEncrypted(hostName, port);
} else
#endif
{
socket->connectToHost(connectionHost, connectionPort);
}
} else {
_q_slotConnected();
}
}
void QHttpPrivate::finishedWithSuccess()
{
Q_Q(QHttp);
if (pending.isEmpty())
return;
QHttpRequest *r = pending.first();
// did we recurse?
if (r->finished)
return;
r->finished = true;
hasFinishedWithError = false;
emit q->requestFinished(r->id, false);
if (hasFinishedWithError) {
// we recursed and changed into an error. The finishedWithError function
// below has emitted the done(bool) signal and cleared the queue by now.
return;
}
pending.removeFirst();
delete r;
if (pending.isEmpty()) {
emit q->done(false);
} else {
_q_startNextRequest();
}
}
void QHttpPrivate::finishedWithError(const QString &detail, int errorCode)
{
Q_Q(QHttp);
if (pending.isEmpty())
return;
QHttpRequest *r = pending.first();
hasFinishedWithError = true;
error = QHttp::Error(errorCode);
errorString = detail;
// did we recurse?
if (!r->finished) {
r->finished = true;
emit q->requestFinished(r->id, true);
}
while (!pending.isEmpty())
delete pending.takeFirst();
emit q->done(hasFinishedWithError);
}
void QHttpPrivate::_q_slotClosed()
{
Q_Q(QHttp);
if (state == QHttp::Reading) {
if (response.hasKey(QLatin1String("content-length"))) {
// We got Content-Length, so did we get all bytes?
if (bytesDone + q->bytesAvailable() != response.contentLength()) {
finishedWithError(QLatin1String(QT_TRANSLATE_NOOP("QHttp", "Wrong content length")), QHttp::WrongContentLength);
}
}
} else if (state == QHttp::Connecting || state == QHttp::Sending) {
finishedWithError(QLatin1String(QT_TRANSLATE_NOOP("QHttp", "Server closed connection unexpectedly")), QHttp::UnexpectedClose);
}
postDevice = 0;
if (state != QHttp::Closing)
setState(QHttp::Closing);
QMetaObject::invokeMethod(q, "_q_slotDoFinished", Qt::QueuedConnection);
}
void QHttpPrivate::_q_continuePost()
{
if (pendingPost) {
pendingPost = false;
setState(QHttp::Sending);
_q_slotBytesWritten(0);
}
}
void QHttpPrivate::_q_slotConnected()
{
if (state != QHttp::Sending) {
bytesDone = 0;
setState(QHttp::Sending);
}
QString str = header.toString();
bytesTotal = str.length();
socket->write(str.toLatin1(), bytesTotal);
#if defined(QHTTP_DEBUG)
qDebug("QHttp: write request header %p:\n---{\n%s}---", &header, str.toLatin1().constData());
#endif
if (postDevice) {
postDevice->seek(0); // reposition the device
bytesTotal += postDevice->size();
//check for 100-continue
if (header.value(QLatin1String("expect")).contains(QLatin1String("100-continue"), Qt::CaseInsensitive)) {
//create a time out for 2 secs.
pendingPost = true;
post100ContinueTimer.start(2000);
}
} else {
bytesTotal += buffer.size();
socket->write(buffer, buffer.size());
}
}
void QHttpPrivate::_q_slotError(QAbstractSocket::SocketError err)
{
Q_Q(QHttp);
postDevice = 0;
if (state == QHttp::Connecting || state == QHttp::Reading || state == QHttp::Sending) {
switch (err) {
case QTcpSocket::ConnectionRefusedError:
finishedWithError(QLatin1String(QT_TRANSLATE_NOOP("QHttp", "Connection refused (or timed out)")), QHttp::ConnectionRefused);
break;
case QTcpSocket::HostNotFoundError:
finishedWithError(QString::fromLatin1(QT_TRANSLATE_NOOP("QHttp", "Host %1 not found"))
.arg(socket->peerName()), QHttp::HostNotFound);
break;
case QTcpSocket::RemoteHostClosedError:
if (state == QHttp::Sending && reconnectAttempts--) {
setState(QHttp::Closing);
setState(QHttp::Unconnected);
socket->blockSignals(true);
socket->abort();
socket->blockSignals(false);
QMetaObject::invokeMethod(q, "_q_slotSendRequest", Qt::QueuedConnection);
return;
}
break;
#ifndef QT_NO_NETWORKPROXY
case QTcpSocket::ProxyAuthenticationRequiredError:
finishedWithError(socket->errorString(), QHttp::ProxyAuthenticationRequiredError);
break;
#endif
default:
finishedWithError(QLatin1String(QT_TRANSLATE_NOOP("QHttp", "HTTP request failed")), QHttp::UnknownError);
break;
}
}
closeConn();
}
#ifndef QT_NO_OPENSSL
void QHttpPrivate::_q_slotEncryptedBytesWritten(qint64 written)
{
Q_UNUSED(written);
postMoreData();
}
#endif
void QHttpPrivate::_q_slotBytesWritten(qint64 written)
{
Q_Q(QHttp);
bytesDone += written;
emit q->dataSendProgress(bytesDone, bytesTotal);
postMoreData();
}
// Send the POST data
void QHttpPrivate::postMoreData()
{
if (pendingPost)
return;
if (!postDevice)
return;
// the following is backported code from Qt 4.6 QNetworkAccessManager.
// We also have to check the encryptedBytesToWrite() if it is an SSL socket.
#ifndef QT_NO_OPENSSL
QSslSocket *sslSocket = qobject_cast<QSslSocket*>(socket);
// if it is really an ssl socket, check more than just bytesToWrite()
if ((socket->bytesToWrite() + (sslSocket ? sslSocket->encryptedBytesToWrite() : 0)) == 0) {
#else
if (socket->bytesToWrite() == 0) {
#endif
int max = qMin<qint64>(4096, postDevice->size() - postDevice->pos());
QByteArray arr;
arr.resize(max);
int n = postDevice->read(arr.data(), max);
if (n < 0) {
qWarning("Could not read enough bytes from the device");
closeConn();
return;
}
if (postDevice->atEnd()) {
postDevice = 0;
}
socket->write(arr, n);
}
}
void QHttpPrivate::_q_slotReadyRead()
{
Q_Q(QHttp);
QHttp::State oldState = state;
if (state != QHttp::Reading) {
setState(QHttp::Reading);
readHeader = true;
headerStr = QLatin1String("");
bytesDone = 0;
chunkedSize = -1;
repost = false;
}
while (readHeader) {
bool end = false;
QString tmp;
while (!end && socket->canReadLine()) {
tmp = QString::fromAscii(socket->readLine());
if (tmp == QLatin1String("\r\n") || tmp == QLatin1String("\n") || tmp.isEmpty())
end = true;
else
headerStr += tmp;
}
if (!end)
return;
response = QHttpResponseHeader(headerStr);
headerStr = QLatin1String("");
#if defined(QHTTP_DEBUG)
qDebug("QHttp: read response header:\n---{\n%s}---", response.toString().toLatin1().constData());
#endif
// Check header
if (!response.isValid()) {
finishedWithError(QLatin1String(QT_TRANSLATE_NOOP("QHttp", "Invalid HTTP response header")),
QHttp::InvalidResponseHeader);
closeConn();
return;
}
int statusCode = response.statusCode();
if (statusCode == 401 || statusCode == 407) { // (Proxy) Authentication required
QAuthenticator *auth =
#ifndef QT_NO_NETWORKPROXY
statusCode == 407
? &proxyAuthenticator :
#endif
&authenticator;
if (auth->isNull())
auth->detach();
QAuthenticatorPrivate *priv = QAuthenticatorPrivate::getPrivate(*auth);
priv->parseHttpResponse(response, (statusCode == 407));
if (priv->phase == QAuthenticatorPrivate::Done) {
socket->blockSignals(true);
#ifndef QT_NO_NETWORKPROXY
if (statusCode == 407)
emit q->proxyAuthenticationRequired(proxy, auth);
else
#endif
emit q->authenticationRequired(hostName, port, auth);
socket->blockSignals(false);
} else if (priv->phase == QAuthenticatorPrivate::Invalid) {
finishedWithError(QLatin1String(QT_TRANSLATE_NOOP("QHttp", "Unknown authentication method")),
QHttp::AuthenticationRequiredError);
closeConn();
return;
}
// priv->phase will get reset to QAuthenticatorPrivate::Start if the authenticator got modified in the signal above.
if (priv->phase == QAuthenticatorPrivate::Done) {
#ifndef QT_NO_NETWORKPROXY
if (statusCode == 407)
finishedWithError(QLatin1String(QT_TRANSLATE_NOOP("QHttp", "Proxy authentication required")),
QHttp::ProxyAuthenticationRequiredError);
else
#endif
finishedWithError(QLatin1String(QT_TRANSLATE_NOOP("QHttp", "Authentication required")),
QHttp::AuthenticationRequiredError);
closeConn();
return;
} else {
// close the connection if it isn't already and reconnect using the chosen authentication method
bool willClose = (response.value(QLatin1String("proxy-connection")).toLower() == QLatin1String("close"))
|| (response.value(QLatin1String("connection")).toLower() == QLatin1String("close"));
if (willClose) {
if (socket) {
setState(QHttp::Closing);
socket->blockSignals(true);
socket->close();
socket->blockSignals(false);
socket->readAll();
}
_q_slotSendRequest();
return;
} else {
repost = true;
}
}
} else {
buffer.clear();
}
if (response.statusCode() == 100 && pendingPost) {
// if we have pending POST, start sending data otherwise ignore
post100ContinueTimer.stop();
QMetaObject::invokeMethod(q, "_q_continuePost", Qt::QueuedConnection);
return;
}
// The 100-continue header is ignored (in case of no 'expect:100-continue' header),
// because when using the POST method, we send both the request header and data in
// one chunk.
if (response.statusCode() != 100) {
post100ContinueTimer.stop();
pendingPost = false;
readHeader = false;
if (response.hasKey(QLatin1String("transfer-encoding")) &&
response.value(QLatin1String("transfer-encoding")).toLower().contains(QLatin1String("chunked")))
chunkedSize = 0;
if (!repost)
emit q->responseHeaderReceived(response);
if (state == QHttp::Unconnected || state == QHttp::Closing)
return;
} else {
// Restore the state, the next incoming data will be treated as if
// we never say the 100 response.
state = oldState;
}
}
bool everythingRead = false;
if (q->currentRequest().method() == QLatin1String("HEAD") ||
response.statusCode() == 304 || response.statusCode() == 204 ||
response.statusCode() == 205) {
// HEAD requests have only headers as replies
// These status codes never have a body:
// 304 Not Modified
// 204 No Content
// 205 Reset Content
everythingRead = true;
} else {
qint64 n = socket->bytesAvailable();
QByteArray *arr = 0;
if (chunkedSize != -1) {
// transfer-encoding is chunked
for (;;) {
// get chunk size
if (chunkedSize == 0) {
if (!socket->canReadLine())
break;
QString sizeString = QString::fromAscii(socket->readLine());
int tPos = sizeString.indexOf(QLatin1Char(';'));
if (tPos != -1)
sizeString.truncate(tPos);
bool ok;
chunkedSize = sizeString.toInt(&ok, 16);
if (!ok) {
finishedWithError(QLatin1String(QT_TRANSLATE_NOOP("QHttp", "Invalid HTTP chunked body")),
QHttp::WrongContentLength);
closeConn();
delete arr;
return;
}
if (chunkedSize == 0) // last-chunk
chunkedSize = -2;
}
// read trailer
while (chunkedSize == -2 && socket->canReadLine()) {
QString read = QString::fromAscii(socket->readLine());
if (read == QLatin1String("\r\n") || read == QLatin1String("\n"))
chunkedSize = -1;
}
if (chunkedSize == -1) {
everythingRead = true;
break;
}
// make sure that you can read the terminating CRLF,
// otherwise wait until next time...
n = socket->bytesAvailable();
if (n == 0)
break;
if (n == chunkedSize || n == chunkedSize+1) {
n = chunkedSize - 1;
if (n == 0)
break;
}
// read data
qint64 toRead = chunkedSize < 0 ? n : qMin(n, chunkedSize);
if (!arr)
arr = new QByteArray;
uint oldArrSize = arr->size();
arr->resize(oldArrSize + toRead);
qint64 read = socket->read(arr->data()+oldArrSize, toRead);
arr->resize(oldArrSize + read);
chunkedSize -= read;
if (chunkedSize == 0 && n - read >= 2) {
// read terminating CRLF
char tmp[2];
socket->read(tmp, 2);
if (tmp[0] != '\r' || tmp[1] != '\n') {
finishedWithError(QLatin1String(QT_TRANSLATE_NOOP("QHttp", "Invalid HTTP chunked body")),
QHttp::WrongContentLength);
closeConn();
delete arr;
return;
}
}
}
} else if (response.hasContentLength()) {
if (repost && (n < response.contentLength())) {
// wait for the content to be available fully
// if repost is required, the content is ignored
return;
}
n = qMin(qint64(response.contentLength() - bytesDone), n);
if (n > 0) {
arr = new QByteArray;
arr->resize(n);
qint64 read = socket->read(arr->data(), n);
arr->resize(read);
}
if (bytesDone + q->bytesAvailable() + n == response.contentLength())
everythingRead = true;
} else if (n > 0) {
// workaround for VC++ bug
QByteArray temp = socket->readAll();
arr = new QByteArray(temp);
}
if (arr && !repost) {
n = arr->size();
if (toDevice) {
qint64 bytesWritten;
bytesWritten = toDevice->write(*arr, n);
delete arr;
arr = 0;
// if writing to the device does not succeed, quit with error
if (bytesWritten == -1 || bytesWritten < n) {
finishedWithError(QLatin1String(QT_TRANSLATE_NOOP("QHttp", "Error writing response to device")), QHttp::UnknownError);
} else {
bytesDone += bytesWritten;
#if defined(QHTTP_DEBUG)
qDebug("QHttp::_q_slotReadyRead(): read %lld bytes (%lld bytes done)", n, bytesDone);
#endif
}
if (response.hasContentLength())
emit q->dataReadProgress(bytesDone, response.contentLength());
else
emit q->dataReadProgress(bytesDone, 0);
} else {
char *ptr = rba.reserve(arr->size());
memcpy(ptr, arr->data(), arr->size());
delete arr;
arr = 0;
#if defined(QHTTP_DEBUG)
qDebug("QHttp::_q_slotReadyRead(): read %lld bytes (%lld bytes done)", n, bytesDone + q->bytesAvailable());
#endif
if (response.hasContentLength())
emit q->dataReadProgress(bytesDone + q->bytesAvailable(), response.contentLength());
else
emit q->dataReadProgress(bytesDone + q->bytesAvailable(), 0);
emit q->readyRead(response);
}
}
delete arr;
}
if (everythingRead) {
if (repost) {
_q_slotSendRequest();
return;
}
// Handle "Connection: close"
if (response.value(QLatin1String("connection")).toLower() == QLatin1String("close")) {
closeConn();
} else {
setState(QHttp::Connected);
// Start a timer, so that we emit the keep alive signal
// "after" this method returned.
QMetaObject::invokeMethod(q, "_q_slotDoFinished", Qt::QueuedConnection);
}
}
}
void QHttpPrivate::_q_slotDoFinished()
{
if (state == QHttp::Connected) {
finishedWithSuccess();
} else if (state != QHttp::Unconnected) {
setState(QHttp::Unconnected);
finishedWithSuccess();
}
}
/*!
Returns the current state of the object. When the state changes,
the stateChanged() signal is emitted.
\sa State stateChanged()
*/
QHttp::State QHttp::state() const
{
Q_D(const QHttp);
return d->state;
}
/*!
Returns the last error that occurred. This is useful to find out
what happened when receiving a requestFinished() or a done()
signal with the \c error argument \c true.
If you start a new request, the error status is reset to \c NoError.
*/
QHttp::Error QHttp::error() const
{
Q_D(const QHttp);
return d->error;
}
/*!
Returns a human-readable description of the last error that
occurred. This is useful to present a error message to the user
when receiving a requestFinished() or a done() signal with the \c
error argument \c true.
*/
QString QHttp::errorString() const
{
Q_D(const QHttp);
return d->errorString;
}
void QHttpPrivate::setState(int s)
{
Q_Q(QHttp);
#if defined(QHTTP_DEBUG)
qDebug("QHttp state changed %d -> %d", state, s);
#endif
state = QHttp::State(s);
emit q->stateChanged(s);
}
void QHttpPrivate::closeConn()
{
Q_Q(QHttp);
// If no connection is open -> ignore
if (state == QHttp::Closing || state == QHttp::Unconnected)
return;
postDevice = 0;
setState(QHttp::Closing);
// Already closed ?
if (!socket || !socket->isOpen()) {
QMetaObject::invokeMethod(q, "_q_slotDoFinished", Qt::QueuedConnection);
} else {
// Close now.
socket->close();
}
}
void QHttpPrivate::setSock(QTcpSocket *sock)
{
Q_Q(const QHttp);
// disconnect all existing signals
if (socket)
socket->disconnect();
if (deleteSocket)
delete socket;
// use the new QTcpSocket socket, or create one if socket is 0.
deleteSocket = (sock == 0);
socket = sock;
if (!socket) {
#ifndef QT_NO_OPENSSL
if (QSslSocket::supportsSsl())
socket = new QSslSocket();
else
#endif
socket = new QTcpSocket();
}
// connect all signals
QObject::connect(socket, SIGNAL(connected()), q, SLOT(_q_slotConnected()));
QObject::connect(socket, SIGNAL(disconnected()), q, SLOT(_q_slotClosed()));
QObject::connect(socket, SIGNAL(readyRead()), q, SLOT(_q_slotReadyRead()));
QObject::connect(socket, SIGNAL(error(QAbstractSocket::SocketError)), q, SLOT(_q_slotError(QAbstractSocket::SocketError)));
QObject::connect(socket, SIGNAL(bytesWritten(qint64)),
q, SLOT(_q_slotBytesWritten(qint64)));
#ifndef QT_NO_NETWORKPROXY
QObject::connect(socket, SIGNAL(proxyAuthenticationRequired(QNetworkProxy,QAuthenticator*)),
q, SIGNAL(proxyAuthenticationRequired(QNetworkProxy,QAuthenticator*)));
#endif
#ifndef QT_NO_OPENSSL
if (qobject_cast<QSslSocket *>(socket)) {
QObject::connect(socket, SIGNAL(sslErrors(QList<QSslError>)),
q, SIGNAL(sslErrors(QList<QSslError>)));
QObject::connect(socket, SIGNAL(encryptedBytesWritten(qint64)),
q, SLOT(_q_slotEncryptedBytesWritten(qint64)));
}
#endif
}
/*!
Tells the QSslSocket used for the Http connection to ignore the errors
reported in the sslErrors() signal.
Note that this function must be called from within a slot connected to the
sslErrors() signal to have any effect.
\sa QSslSocket QSslSocket::sslErrors()
*/
#ifndef QT_NO_OPENSSL
void QHttp::ignoreSslErrors()
{
Q_D(QHttp);
QSslSocket *sslSocket = qobject_cast<QSslSocket *>(d->socket);
if (sslSocket)
sslSocket->ignoreSslErrors();
}
#endif
QT_END_NAMESPACE
#include "moc_qhttp.cpp"
#endif