The QHttpMultiPart class resembles a MIME multipart message to be sent over HTTP. More...

#include <qhttpmultipart.h>

Inheritance diagram for QHttpMultiPart:

Collaboration diagram for QHttpMultiPart:

Public Types
enum	ContentType { MixedType , RelatedType , FormDataType , AlternativeType }
	List of known content types for a multipart subtype as described in RFC 2046 and others. More...

Public Member Functions
	QHttpMultiPart (QObject *parent=nullptr)
	Constructs a QHttpMultiPart with content type MixedType and sets parent as the parent object.

	QHttpMultiPart (ContentType contentType, QObject *parent=nullptr)
	Constructs a QHttpMultiPart with content type contentType and sets parent as the parent object.

	~QHttpMultiPart ()
	Destroys the multipart.

void	append (const QHttpPart &httpPart)
	Appends httpPart to this multipart.

void	setContentType (ContentType contentType)
	Sets the content type to contentType.

QByteArray	boundary () const
	returns the boundary.

void	setBoundary (const QByteArray &boundary)
	Sets the boundary to boundary.

Public Member Functions inherited from QObject
Q_INVOKABLE	QObject (QObject *parent=nullptr)
	Constructs an object with parent object parent.

virtual	~QObject ()
	Destroys the object, deleting all its child objects.

virtual bool	event (QEvent *event)
	This virtual function receives events to an object and should return true if the event e was recognized and processed.

virtual bool	eventFilter (QObject watched, QEvent event)
	Filters events if this object has been installed as an event filter for the watched object.

QString	objectName () const

Q_WEAK_OVERLOAD void	setObjectName (const QString &name)
	Sets the object's name to name.

void	setObjectName (QAnyStringView name)
	This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.

QBindable< QString >	bindableObjectName ()

bool	isWidgetType () const
	Returns `true` if the object is a widget; otherwise returns `false`.

bool	isWindowType () const
	Returns `true` if the object is a window; otherwise returns `false`.

bool	isQuickItemType () const
	Returns `true` if the object is a QQuickItem; otherwise returns `false`.

bool	signalsBlocked () const noexcept
	Returns `true` if signals are blocked; otherwise returns `false`.

bool	blockSignals (bool b) noexcept
	If block is true, signals emitted by this object are blocked (i.e., emitting a signal will not invoke anything connected to it).

QThread *	thread () const
	Returns the thread in which the object lives.

bool	moveToThread (QThread *thread QT6_DECL_NEW_OVERLOAD_TAIL)
	Changes the thread affinity for this object and its children and returns `true` on success.

int	startTimer (int interval, Qt::TimerType timerType=Qt::CoarseTimer)
	This is an overloaded function that will start a timer of type timerType and a timeout of interval milliseconds.

int	startTimer (std::chrono::nanoseconds time, Qt::TimerType timerType=Qt::CoarseTimer)

void	killTimer (int id)
	Kills the timer with timer identifier, id.

void	killTimer (Qt::TimerId id)

template<typename T >
T	findChild (QAnyStringView aName, Qt::FindChildOptions options=Qt::FindChildrenRecursively) const
	Returns the child of this object that can be cast into type T and that is called name, or \nullptr if there is no such object.

template<typename T >
QList< T >	findChildren (QAnyStringView aName, Qt::FindChildOptions options=Qt::FindChildrenRecursively) const
	Returns all children of this object with the given name that can be cast to type T, or an empty list if there are no such objects.

template<typename T >
T	findChild (Qt::FindChildOptions options=Qt::FindChildrenRecursively) const
	This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.

template<typename T >
QList< T >	findChildren (Qt::FindChildOptions options=Qt::FindChildrenRecursively) const
	This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.

const QObjectList &	children () const
	Returns a list of child objects.

void	setParent (QObject *parent)
	Makes the object a child of parent.

void	installEventFilter (QObject *filterObj)
	Installs an event filter filterObj on this object.

void	removeEventFilter (QObject *obj)
	Removes an event filter object obj from this object.

QMetaObject::Connection	connect (const QObject sender, const char signal, const char *member, Qt::ConnectionType type=Qt::AutoConnection) const

bool	disconnect (const char signal=nullptr, const QObject receiver=nullptr, const char *member=nullptr) const

bool	disconnect (const QObject receiver, const char member=nullptr) const

void	dumpObjectTree () const
	Dumps a tree of children to the debug output.

void	dumpObjectInfo () const
	Dumps information about signal connections, etc.

bool	setProperty (const char *name, const QVariant &value)
	Sets the value of the object's name property to value.

bool	setProperty (const char *name, QVariant &&value)

QVariant	property (const char *name) const
	Returns the value of the object's name property.

QList< QByteArray >	dynamicPropertyNames () const

QBindingStorage *	bindingStorage ()

const QBindingStorage *	bindingStorage () const

QObject *	parent () const
	Returns a pointer to the parent object.

bool	inherits (const char *classname) const
	Returns `true` if this object is an instance of a class that inherits className or a QObject subclass that inherits className; otherwise returns `false`.

Friends
class	QNetworkAccessManager

class	QNetworkAccessManagerPrivate

Additional Inherited Members
Public Slots inherited from QObject
void	deleteLater ()
	\threadsafe

Signals inherited from QObject
void	destroyed (QObject *=nullptr)
	This signal is emitted immediately before the object obj is destroyed, after any instances of QPointer have been notified, and cannot be blocked.

void	objectNameChanged (const QString &objectName, QPrivateSignal)
	This signal is emitted after the object's name has been changed.

Static Public Member Functions inherited from QObject
static QMetaObject::Connection	connect (const QObject sender, const char signal, const QObject receiver, const char member, Qt::ConnectionType=Qt::AutoConnection)
	\threadsafe

static QMetaObject::Connection	connect (const QObject sender, const QMetaMethod &signal, const QObject receiver, const QMetaMethod &method, Qt::ConnectionType type=Qt::AutoConnection)

template<typename Func1 , typename Func2 >
static QMetaObject::Connection	connect (const typename QtPrivate::FunctionPointer< Func1 >::Object sender, Func1 signal, const typename QtPrivate::ContextTypeForFunctor< Func2 >::ContextType context, Func2 &&slot, Qt::ConnectionType type=Qt::AutoConnection)

template<typename Func1 , typename Func2 >
static QMetaObject::Connection	connect (const typename QtPrivate::FunctionPointer< Func1 >::Object *sender, Func1 signal, Func2 &&slot)

static bool	disconnect (const QObject sender, const char signal, const QObject receiver, const char member)
	\threadsafe

static bool	disconnect (const QObject sender, const QMetaMethod &signal, const QObject receiver, const QMetaMethod &member)

static bool	disconnect (const QMetaObject::Connection &)
	Disconnect a connection.

template<typename Func1 , typename Func2 >
static bool	disconnect (const typename QtPrivate::FunctionPointer< Func1 >::Object sender, Func1 signal, const typename QtPrivate::FunctionPointer< Func2 >::Object receiver, Func2 slot)

template<typename Func1 >
static bool	disconnect (const typename QtPrivate::FunctionPointer< Func1 >::Object sender, Func1 signal, const QObject receiver, void **zero)

Protected Member Functions inherited from QObject
QObject *	sender () const
	Returns a pointer to the object that sent the signal, if called in a slot activated by a signal; otherwise it returns \nullptr.

int	senderSignalIndex () const

int	receivers (const char *signal) const
	Returns the number of receivers connected to the signal.

bool	isSignalConnected (const QMetaMethod &signal) const

virtual void	timerEvent (QTimerEvent *event)
	This event handler can be reimplemented in a subclass to receive timer events for the object.

virtual void	childEvent (QChildEvent *event)
	This event handler can be reimplemented in a subclass to receive child events.

virtual void	customEvent (QEvent *event)
	This event handler can be reimplemented in a subclass to receive custom events.

virtual void	connectNotify (const QMetaMethod &signal)

virtual void	disconnectNotify (const QMetaMethod &signal)

	QObject (QObjectPrivate &dd, QObject *parent=nullptr)

Protected Attributes inherited from QObject
QScopedPointer< QObjectData >	d_ptr

Properties inherited from QObject
QString	objectName
	the name of this object

Related Symbols inherited from QObject
template< class T > T	qobject_cast (const QObject *object)
	Returns the given object cast to type T if the object is of type T (or of a subclass); otherwise returns \nullptr.

template< typename T > T	qFindChildqFindChildren (const QObject *obj, const QString &name)()

template< typename T > QList< T >	qFindChildrenqFindChildren (const QObject *obj, const QString &name)()

	QObjectList
	\macro Q_CLASSINFO(Name, Value)

Detailed Description

The QHttpMultiPart class resembles a MIME multipart message to be sent over HTTP.

Since: 4.8

\inmodule QtNetwork

The QHttpMultiPart resembles a MIME multipart message, as described in RFC 2046, which is to be sent over HTTP. A multipart message consists of an arbitrary number of body parts (see QHttpPart), which are separated by a unique boundary. The boundary of the QHttpMultiPart is constructed with the string "boundary_.oOo._" followed by random characters, and provides enough uniqueness to make sure it does not occur inside the parts itself. If desired, the boundary can still be set via setBoundary().

As an example, consider the following code snippet, which constructs a multipart message containing a text part followed by an image part:

QHttpMultiPart *multiPart = new QHttpMultiPart(QHttpMultiPart::FormDataType);
 
QHttpPart textPart;
textPart.setHeader(QNetworkRequest::ContentDispositionHeader, QVariant("form-data; name=\"text\""));
textPart.setBody("my text");
 
QHttpPart imagePart;
imagePart.setHeader(QNetworkRequest::ContentTypeHeader, QVariant("image/jpeg"));
imagePart.setHeader(QNetworkRequest::ContentDispositionHeader, QVariant("form-data; name=\"image\""));
QFile *file = new QFile("image.jpg");
file->open(QIODevice::ReadOnly);
imagePart.setBodyDevice(file);
file->setParent(multiPart); // we cannot delete the file now, so delete it with the multiPart
 
multiPart->append(textPart);
multiPart->append(imagePart);
 
QUrl url("http://my.server.tld");
QNetworkRequest request(url);
 
QNetworkAccessManager manager;
QNetworkReply *reply = manager.post(request, multiPart);
multiPart->setParent(reply); // delete the multiPart with the reply
// here connect signals etc.

See also: QHttpPart, QNetworkAccessManager::post()

Definition at line 58 of file qhttpmultipart.h.

Member Enumeration Documentation

◆ ContentType

enum QHttpMultiPart::ContentType

List of known content types for a multipart subtype as described in RFC 2046 and others.

\value MixedType corresponds to the "multipart/mixed" subtype, meaning the body parts are independent of each other, as described in RFC 2046.

\value RelatedType corresponds to the "multipart/related" subtype, meaning the body parts are related to each other, as described in RFC 2387.

\value FormDataType corresponds to the "multipart/form-data" subtype, meaning the body parts contain form elements, as described in RFC 2388.

\value AlternativeType corresponds to the "multipart/alternative" subtype, meaning the body parts are alternative representations of the same information, as described in RFC 2046.

See also: setContentType()

Enumerator
MixedType
RelatedType
FormDataType
AlternativeType

Definition at line 64 of file qhttpmultipart.h.

Constructor & Destructor Documentation

◆ QHttpMultiPart() [1/2]

QHttpMultiPart::QHttpMultiPart ( QObject * parent = nullptr )

explicit

Constructs a QHttpMultiPart with content type MixedType and sets parent as the parent object.

See also: QHttpMultiPart::ContentType

Definition at line 234 of file qhttpmultipart.cpp.

References d, and MixedType.

◆ QHttpMultiPart() [2/2]

QHttpMultiPart::QHttpMultiPart	(	QHttpMultiPart::ContentType	contentType,
		QObject *	parent = nullptr )

explicit

Constructs a QHttpMultiPart with content type contentType and sets parent as the parent object.

See also: QHttpMultiPart::ContentType

Definition at line 246 of file qhttpmultipart.cpp.

References d.

◆ ~QHttpMultiPart()

QHttpMultiPart::~QHttpMultiPart ( )

Destroys the multipart.

Definition at line 255 of file qhttpmultipart.cpp.

Member Function Documentation

◆ append()

void QHttpMultiPart::append ( const QHttpPart & httpPart )

Appends httpPart to this multipart.

Definition at line 262 of file qhttpmultipart.cpp.

◆ boundary()

QByteArray QHttpMultiPart::boundary ( ) const

returns the boundary.

See also: setBoundary()

Definition at line 289 of file qhttpmultipart.cpp.

Referenced by setBoundary().

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◆ setBoundary()

void QHttpMultiPart::setBoundary ( const QByteArray & boundary )

Sets the boundary to boundary.

Usually, you do not need to generate a boundary yourself; upon construction the boundary is initiated with the string "boundary_.oOo._" followed by random characters, and provides enough uniqueness to make sure it does not occur inside the parts itself.

See also: boundary()

Definition at line 304 of file qhttpmultipart.cpp.

References boundary().

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◆ setContentType()

void QHttpMultiPart::setContentType ( QHttpMultiPart::ContentType contentType )

Sets the content type to contentType.

The content type will be used in the HTTP header section when sending the multipart message via QNetworkAccessManager::post(). In case you want to use a multipart subtype not contained in QHttpMultiPart::ContentType, you can add the "Content-Type" header field to the QNetworkRequest by hand, and then use this request together with the multipart message for posting.

See also: QHttpMultiPart::ContentType, QNetworkAccessManager::post()

Definition at line 279 of file qhttpmultipart.cpp.

Friends And Related Symbol Documentation

◆ QNetworkAccessManager

friend class QNetworkAccessManager

friend

Definition at line 86 of file qhttpmultipart.h.

◆ QNetworkAccessManagerPrivate

friend class QNetworkAccessManagerPrivate