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/**
@file
@author Stefan Frings
*/
#ifndef HTTPCONNECTIONHANDLER_H
#define HTTPCONNECTIONHANDLER_H
#ifndef QT_NO_OPENSSL
#include <QSslConfiguration>
#endif
#include <QTcpSocket>
#include <QSettings>
#include <QTimer>
#include <QThread>
#include "httpglobal.h"
#include "httprequest.h"
#include "httprequesthandler.h"
/** Alias type definition, for compatibility to different Qt versions */
#if QT_VERSION >= 0x050000
typedef qintptr tSocketDescriptor;
#else
typedef int tSocketDescriptor;
#endif
/** Alias for QSslConfiguration if OpenSSL is not supported */
#ifdef QT_NO_OPENSSL
#define QSslConfiguration QObject
#endif
/**
The connection handler accepts incoming connections and dispatches incoming requests to to a
request mapper. Since HTTP clients can send multiple requests before waiting for the response,
the incoming requests are queued and processed one after the other.
<p>
Example for the required configuration settings:
<code><pre>
readTimeout=60000
maxRequestSize=16000
maxMultiPartSize=1000000
</pre></code>
<p>
The readTimeout value defines the maximum time to wait for a complete HTTP request.
@see HttpRequest for description of config settings maxRequestSize and maxMultiPartSize.
*/
class DECLSPEC HttpConnectionHandler : public QThread {
Q_OBJECT
Q_DISABLE_COPY(HttpConnectionHandler)
public:
/**
Constructor.
@param settings Configuration settings of the HTTP webserver
@param requestHandler Handler that will process each incoming HTTP request
@param sslConfiguration SSL (HTTPS) will be used if not NULL
*/
HttpConnectionHandler(QSettings* settings, HttpRequestHandler* requestHandler, QSslConfiguration* sslConfiguration=NULL);
/** Destructor */
virtual ~HttpConnectionHandler();
/** Returns true, if this handler is in use. */
bool isBusy();
/** Mark this handler as busy */
void setBusy();
private:
/** Configuration settings */
QSettings* settings;
/** TCP socket of the current connection */
QTcpSocket* socket;
/** Time for read timeout detection */
QTimer readTimer;
/** Storage for the current incoming HTTP request */
HttpRequest* currentRequest;
/** Dispatches received requests to services */
HttpRequestHandler* requestHandler;
/** This shows the busy-state from a very early time */
bool busy;
/** Configuration for SSL */
QSslConfiguration* sslConfiguration;
/** Executes the threads own event loop */
void run();
/** Create SSL or TCP socket */
void createSocket();
public slots:
/**
Received from from the listener, when the handler shall start processing a new connection.
@param socketDescriptor references the accepted connection.
*/
void handleConnection(tSocketDescriptor socketDescriptor);
private slots:
/** Received from the socket when a read-timeout occured */
void readTimeout();
/** Received from the socket when incoming data can be read */
void read();
/** Received from the socket when a connection has been closed */
void disconnected();
};
#endif // HTTPCONNECTIONHANDLER_H
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