/**************************************************************************** ** ** Copyright (C) 2012 Digia Plc and/or its subsidiary(-ies). ** Contact: http://www.qt-project.org/legal ** ** This file is part of the QtNetwork module of the Qt Toolkit. ** ** $QT_BEGIN_LICENSE:LGPL$ ** Commercial License Usage ** Licensees holding valid commercial Qt licenses may use this file in ** accordance with the commercial license agreement provided with the ** Software or, alternatively, in accordance with the terms contained in ** a written agreement between you and Digia. For licensing terms and ** conditions see http://qt.digia.com/licensing. For further information ** use the contact form at http://qt.digia.com/contact-us. ** ** GNU Lesser General Public License Usage ** Alternatively, this file may be used under the terms of the GNU Lesser ** General Public License version 2.1 as published by the Free Software ** Foundation and appearing in the file LICENSE.LGPL included in the ** packaging of this file. Please review the following information to ** ensure the GNU Lesser General Public License version 2.1 requirements ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. ** ** In addition, as a special exception, Digia gives you certain additional ** rights. These rights are described in the Digia 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. ** ** ** $QT_END_LICENSE$ ** ****************************************************************************/ #ifndef QHTTPNETWORKCONNECTION_H #define QHTTPNETWORKCONNECTION_H // // W A R N I N G // ------------- // // This file is not part of the Qt API. It exists for the convenience // of the Network Access API. This header file may change from // version to version without notice, or even be removed. // // We mean it. // #include #include #include #include #include #include #include #include #include #include #ifndef QT_NO_HTTP #ifndef QT_NO_OPENSSL # include # include #else # include #endif QT_BEGIN_NAMESPACE class QHttpNetworkRequest; class QHttpNetworkReply; class QHttpNetworkConnectionPrivate; class Q_AUTOTEST_EXPORT QHttpNetworkConnection : public QObject { Q_OBJECT public: QHttpNetworkConnection(const QString &hostName, quint16 port = 80, bool encrypt = false, QObject *parent = 0); ~QHttpNetworkConnection(); //The hostname to which this is connected to. QString hostName() const; //The HTTP port in use. quint16 port() const; //add a new HTTP request through this connection QHttpNetworkReply* sendRequest(const QHttpNetworkRequest &request); #ifndef QT_NO_NETWORKPROXY //set the proxy for this connection void setCacheProxy(const QNetworkProxy &networkProxy); QNetworkProxy cacheProxy() const; void setTransparentProxy(const QNetworkProxy &networkProxy); QNetworkProxy transparentProxy() const; #endif //enable encryption void enableEncryption(); bool isEncrypted() const; //authentication parameters void setProxyAuthentication(QAuthenticator *authenticator); void setAuthentication(const QString &domain, QAuthenticator *authenticator); #ifndef QT_NO_OPENSSL void setSslConfiguration(const QSslConfiguration &config); void ignoreSslErrors(int channel = -1); Q_SIGNALS: void sslErrors(const QList &errors); #endif Q_SIGNALS: #ifndef QT_NO_NETWORKPROXY //cannot be used with queued connection. void proxyAuthenticationRequired(const QNetworkProxy &proxy, QAuthenticator *authenticator, const QHttpNetworkConnection *connection = 0); #endif void authenticationRequired(const QHttpNetworkRequest &request, QAuthenticator *authenticator, const QHttpNetworkConnection *connection = 0); void error(QNetworkReply::NetworkError errorCode, const QString &detail = QString()); private: Q_DECLARE_PRIVATE(QHttpNetworkConnection) Q_DISABLE_COPY(QHttpNetworkConnection) friend class QHttpNetworkReply; Q_PRIVATE_SLOT(d_func(), void _q_bytesWritten(qint64)) Q_PRIVATE_SLOT(d_func(), void _q_readyRead()) Q_PRIVATE_SLOT(d_func(), void _q_disconnected()) Q_PRIVATE_SLOT(d_func(), void _q_startNextRequest()) Q_PRIVATE_SLOT(d_func(), void _q_restartPendingRequest()) Q_PRIVATE_SLOT(d_func(), void _q_connected()) Q_PRIVATE_SLOT(d_func(), void _q_error(QAbstractSocket::SocketError)) #ifndef QT_NO_NETWORKPROXY Q_PRIVATE_SLOT(d_func(), void _q_proxyAuthenticationRequired(const QNetworkProxy&, QAuthenticator*)) #endif Q_PRIVATE_SLOT(d_func(), void _q_dataReadyReadBuffer()) Q_PRIVATE_SLOT(d_func(), void _q_dataReadyReadNoBuffer()) #ifndef QT_NO_OPENSSL Q_PRIVATE_SLOT(d_func(), void _q_encrypted()) Q_PRIVATE_SLOT(d_func(), void _q_sslErrors(const QList&)) #endif }; // private classes typedef QPair HttpMessagePair; class QHttpNetworkConnectionPrivate : public QObjectPrivate { Q_DECLARE_PUBLIC(QHttpNetworkConnection) public: QHttpNetworkConnectionPrivate(const QString &hostName, quint16 port, bool encrypt); ~QHttpNetworkConnectionPrivate(); void init(); void connectSignals(QAbstractSocket *socket); enum SocketState { IdleState = 0, // ready to send request ConnectingState = 1, // connecting to host WritingState = 2, // writing the data WaitingState = 4, // waiting for reply ReadingState = 8, // reading the reply Wait4AuthState = 0x10, // blocked for send till the current authentication slot is done BusyState = (ConnectingState|WritingState|WaitingState|ReadingState|Wait4AuthState) }; enum { ChunkSize = 4096 }; int indexOf(QAbstractSocket *socket) const; bool isSocketBusy(QAbstractSocket *socket) const; bool isSocketWriting(QAbstractSocket *socket) const; bool isSocketWaiting(QAbstractSocket *socket) const; bool isSocketReading(QAbstractSocket *socket) const; QHttpNetworkReply *queueRequest(const QHttpNetworkRequest &request); void unqueueRequest(QAbstractSocket *socket); void prepareRequest(HttpMessagePair &request); bool sendRequest(QAbstractSocket *socket); void receiveReply(QAbstractSocket *socket, QHttpNetworkReply *reply); void resendCurrentRequest(QAbstractSocket *socket); void closeChannel(int channel); void copyCredentials(int fromChannel, QAuthenticator *auth, bool isProxy); // private slots void _q_bytesWritten(qint64 bytes); // proceed sending void _q_readyRead(); // pending data to read void _q_disconnected(); // disconnected from host void _q_startNextRequest(); // send the next request from the queue void _q_restartPendingRequest(); // send the currently blocked request void _q_connected(); // start sending request void _q_error(QAbstractSocket::SocketError); // error from socket #ifndef QT_NO_NETWORKPROXY void _q_proxyAuthenticationRequired(const QNetworkProxy &proxy, QAuthenticator *auth); // from transparent proxy #endif void _q_dataReadyReadNoBuffer(); void _q_dataReadyReadBuffer(); void createAuthorization(QAbstractSocket *socket, QHttpNetworkRequest &request); bool ensureConnection(QAbstractSocket *socket); QString errorDetail(QNetworkReply::NetworkError errorCode, QAbstractSocket *socket); void eraseData(QHttpNetworkReply *reply); #ifndef QT_NO_COMPRESS bool expand(QAbstractSocket *socket, QHttpNetworkReply *reply, bool dataComplete); #endif void bufferData(HttpMessagePair &request); void removeReply(QHttpNetworkReply *reply); QString hostName; quint16 port; bool encrypt; struct Channel { QAbstractSocket *socket; SocketState state; QHttpNetworkRequest request; // current request QHttpNetworkReply *reply; // current reply for this request qint64 written; qint64 bytesTotal; bool resendCurrent; int lastStatus; // last status received on this channel bool pendingEncrypt; // for https (send after encrypted) int reconnectAttempts; // maximum 2 reconnection attempts QAuthenticatorPrivate::Method authMehtod; QAuthenticatorPrivate::Method proxyAuthMehtod; QAuthenticator authenticator; QAuthenticator proxyAuthenticator; #ifndef QT_NO_OPENSSL bool ignoreSSLErrors; #endif Channel() : socket(0), state(IdleState), reply(0), written(0), bytesTotal(0), resendCurrent(false), lastStatus(0), pendingEncrypt(false), reconnectAttempts(2), authMehtod(QAuthenticatorPrivate::None), proxyAuthMehtod(QAuthenticatorPrivate::None) #ifndef QT_NO_OPENSSL , ignoreSSLErrors(false) #endif {} }; static const int channelCount; Channel channels[2]; // maximum of 2 socket connections to the server bool pendingAuthSignal; // there is an incomplete authentication signal bool pendingProxyAuthSignal; // there is an incomplete proxy authentication signal void appendData(QHttpNetworkReply &reply, const QByteArray &fragment, bool compressed); qint64 bytesAvailable(const QHttpNetworkReply &reply, bool compressed = false) const; qint64 read(QHttpNetworkReply &reply, QByteArray &data, qint64 maxSize, bool compressed); void emitReplyError(QAbstractSocket *socket, QHttpNetworkReply *reply, QNetworkReply::NetworkError errorCode); bool handleAuthenticateChallenge(QAbstractSocket *socket, QHttpNetworkReply *reply, bool isProxy, bool &resend); void allDone(QAbstractSocket *socket, QHttpNetworkReply *reply); void handleStatus(QAbstractSocket *socket, QHttpNetworkReply *reply); inline bool emitSignals(QHttpNetworkReply *reply); inline bool expectContent(QHttpNetworkReply *reply); #ifndef QT_NO_OPENSSL void _q_encrypted(); // start sending request (https) void _q_sslErrors(const QList &errors); // ssl errors from the socket QSslConfiguration sslConfiguration(const QHttpNetworkReply &reply) const; #endif #ifndef QT_NO_NETWORKPROXY QNetworkProxy networkProxy; #endif //The request queues QList highPriorityQueue; QList lowPriorityQueue; }; QT_END_NAMESPACE //Q_DECLARE_METATYPE(QHttpNetworkRequest) //Q_DECLARE_METATYPE(QHttpNetworkReply) #endif // QT_NO_HTTP #endif