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39
40#ifndef QWEBSOCKETDATAPROCESSOR_P_H
41#define QWEBSOCKETDATAPROCESSOR_P_H
42
43//
44// W A R N I N G
45// -------------
46//
47// This file is not part of the Qt API. It exists purely as an
48// implementation detail. This header file may change from version to
49// version without notice, or even be removed.
50//
51// We mean it.
52//
53
54#include <QtCore/QObject>
55#include <QtCore/QByteArray>
56#include <QtCore/QString>
57#include <QtCore/QTextCodec>
58#include <QTimer>
59#include "qwebsocketframe_p.h"
60#include "qwebsocketprotocol.h"
61#include "qwebsocketprotocol_p.h"
62
63QT_BEGIN_NAMESPACE
64
65class QIODevice;
66class QWebSocketFrame;
67
68const quint64 MAX_MESSAGE_SIZE_IN_BYTES = std::numeric_limits<int>::max() - 1;
69
70class Q_AUTOTEST_EXPORT QWebSocketDataProcessor : public QObject
71{
72 Q_OBJECT
73 Q_DISABLE_COPY(QWebSocketDataProcessor)
74
75public:
76 explicit QWebSocketDataProcessor(QObject *parent = nullptr);
77 ~QWebSocketDataProcessor() override;
78
79 void setMaxAllowedFrameSize(quint64 maxAllowedFrameSize);
80 quint64 maxAllowedFrameSize() const;
81 void setMaxAllowedMessageSize(quint64 maxAllowedMessageSize);
82 quint64 maxAllowedMessageSize() const;
83 static quint64 maxMessageSize();
84 static quint64 maxFrameSize();
85
86Q_SIGNALS:
87 void pingReceived(const QByteArray &data);
88 void pongReceived(const QByteArray &data);
89 void closeReceived(QWebSocketProtocol::CloseCode closeCode, const QString &closeReason);
90 void textFrameReceived(const QString &frame, bool lastFrame);
91 void binaryFrameReceived(const QByteArray &frame, bool lastFrame);
92 void textMessageReceived(const QString &message);
93 void binaryMessageReceived(const QByteArray &message);
94 void errorEncountered(QWebSocketProtocol::CloseCode code, const QString &description);
95
96public Q_SLOTS:
97 bool process(QIODevice *pIoDevice);
98 void clear();
99
100private:
101 enum
102 {
103 PS_READ_HEADER,
104 PS_READ_PAYLOAD_LENGTH,
105 PS_READ_BIG_PAYLOAD_LENGTH,
106 PS_READ_MASK,
107 PS_READ_PAYLOAD,
108 PS_DISPATCH_RESULT
109 } m_processingState;
110
111 bool m_isFinalFrame;
112 bool m_isFragmented;
113 QWebSocketProtocol::OpCode m_opCode;
114 bool m_isControlFrame;
115 bool m_hasMask;
116 quint32 m_mask;
117 QByteArray m_binaryMessage;
118 QString m_textMessage;
119 quint64 m_payloadLength;
120 QTextCodec::ConverterState *m_pConverterState;
121 QTextCodec *m_pTextCodec;
122 QWebSocketFrame frame;
123 QTimer *m_waitTimer;
124 quint64 m_maxAllowedMessageSize = MAX_MESSAGE_SIZE_IN_BYTES;
125
126 bool processControlFrame(const QWebSocketFrame &frame);
127 void timeout();
128};
129
130QT_END_NAMESPACE
131
132#endif // QWEBSOCKETDATAPROCESSOR_P_H
133

source code of qtwebsockets/src/websockets/qwebsocketdataprocessor_p.h