httpexampleengine.h

该项目主要集成来HTTP连接网络

#ifndef HTTPEXAMPLEENGINE_H
#define HTTPEXAMPLEENGINE_H

// INCLUDES
// System includes
#include <e32base.h>                        // CBase
#include <MHTTPAuthenticationCallback.h>    // MHTTPAuthenticationCallback
#include <mhttpdatasupplier.h>                // MHTTPDataSupplier
#include <mhttptransactioncallback.h>        // MHTTPTransactionCallback
#include <RHTTPSession.h>                    // RHTTPSession
#include <RHTTPTransaction.h>                // RHTTPTransaction

// CONSTANTS

// FORWARD DECLARATIONS
class CHTTPFormEncoder;

// CLASS DECLARATION

/**
*
* @class    MHTTPExampleEngineObserver HTTPExampleEngine.h
* @brief    This is the engine observer interface
*
* Copyright (c) EMCC Software Ltd 2003
* @version    1.0
*
*/
class MHTTPExampleEngineObserver
{
    public:
        virtual void ResponseStatusL(TInt aStatusCode, const TDesC& aStatusText) = 0;
        virtual void ResponseReceivedL(const TDesC& aResponseBuffer) = 0;
};


/**
*
* @class    CHTTPExampleEngine HTTPExampleEngine.h
* @brief    This is the engine class, responsible for HTTP transactions.
*
* Copyright (c) EMCC Software Ltd 2003
* @version    1.0
*
*/
class CHTTPExampleEngine : public CBase,
                           public MHTTPTransactionCallback
{
    public:
        static CHTTPExampleEngine* NewL(MHTTPExampleEngineObserver& aObserver);
        ~CHTTPExampleEngine();

        void GetRequestL(const TDesC& aUri);
        void PostRequestL(const TDesC& aName);

        // Cancel an outstanding transaction
        void Cancel();

    private: // from MHTTPTransactionCallback
        virtual void MHFRunL(RHTTPTransaction aTransaction, const THTTPEvent& aEvent);
        virtual TInt MHFRunError(TInt aError, RHTTPTransaction aTransaction, const THTTPEvent& aEvent);

    private:
        CHTTPExampleEngine(MHTTPExampleEngineObserver& aObserver);
        void ConstructL();

        void ParseUriL(const TDesC& aUri);
        void AddHeaderL(RHTTPHeaders aHeaders, TInt aHeaderField, const TDesC8& aHeaderValue);

    private:
        RHTTPSession iSession;
        RHTTPTransaction iTransaction;

        HBufC* iResponseBuffer;
        HBufC8* iUri;
        TUriParser8 iUriParser;
        CHTTPFormEncoder* iFormEncoder;

        MHTTPExampleEngineObserver& iObserver;
};

#endif    // #ifndef HTTPEXAMPLEENGINE_H

// End of File